At first glance, Plenum and Riser cables may seem interchangeable. But using the wrong one can quietly jeopardize your safety, violate building codes, and even lead to failed inspections without you realizing it until it\u2019s too late.<\/p>\n\n\n\n
In this guide, we\u2019ll break down the real difference between Plenum and Riser Ethernet cables, why one is safer in emergencies, and how to make a code-compliant choice that protects your network and your peace of mind.<\/p>\n\n\n\n
Understanding Plenum and Riser Cables<\/strong><\/h2>\n\n\n\nPlenum Ethernet Cables<\/strong><\/h3>\n\n\n\nA Plenum Ethernet cable<\/a> is designed with a special jacket made from low-smoke, fire-retardant materials like FEP (Fluorinated Ethylene Propylene). These cables are built to comply with strict safety regulations for areas where air circulates known as plenum spaces such as air ducts and drop ceilings.<\/p>\n\n\n\nRiser Ethernet Cables<\/strong><\/h3>\n\n\n\nA Riser Ethernet cable<\/a> uses a PVC (Polyvinyl Chloride) jacket that meets the fire-resistance requirements for vertical runs between floors. These are commonly used in riser shafts, elevator shafts, or walls anywhere not exposed to open airflow.<\/p>\n\n\n\nKey Differences Between Plenum and Riser Ethernet Cables<\/strong><\/h2>\n\n\n\nRegarding network infrastructure, the terms Plenum and Riser aren\u2019t just labels. They refer to crucial safety and installation distinctions affecting performance, compliance, and legal liability. <\/p>\n\n\n\n
Fire Safety Rating<\/strong><\/h3>\n\n\n\n\n- Plenum (CMP):<\/strong>\u00a0It is engineered for environments with circulating air, such as above drop ceilings or under raised floors. These cables meet the highest\u00a0fire safety<\/a>\u00a0standards, producing very low smoke and toxic emissions if burned critical in helping occupants evacuate safely during a fire.<\/li>\n\n\n\n
- Riser (CMR):<\/strong>\u00a0It is intended for vertical spaces like riser shafts or cable runs between floors. While they offer decent flame resistance, they emit more smoke and aren\u2019t safe for areas with open airflow.<\/li>\n<\/ul>\n\n\n\n
Installation Environment<\/strong><\/h3>\n\n\n\n\n- Plenum:<\/strong>\u00a0It is required by code in air-handling spaces, especially in commercial buildings where ventilation systems could rapidly spread smoke or fumes.<\/li>\n\n\n\n
- Riser:<\/strong>\u00a0It is commonly used in residential buildings or office spaces for in-wall or floor-to-floor cabling where the air is not actively circulated.<\/li>\n<\/ul>\n\n\n\n
Cost Comparison<\/strong><\/h3>\n\n\n\n\n- Plenum:<\/strong>\u00a0Due to their specialized materials and fire-retardant properties, plenum\u00a0cables<\/a>\u00a0tend to be significantly more expensive, sometimes twice the price of riser cables.<\/li>\n\n\n\n
- Riser:<\/strong>\u00a0It offers a more budget-friendly solution for applications where plenum-grade protection is unnecessary.<\/li>\n<\/ul>\n\n\n\n
Flexibility & Ease of Use<\/strong><\/h3>\n\n\n\n\n- Plenum:<\/strong>\u00a0It is often more rigid due to its insulation, which can make it slightly harder to maneuver during installation, especially in tight spaces.<\/li>\n\n\n\n
- Riser:<\/strong>\u00a0They are generally more flexible, making them easier to work with for long vertical runs or curved pathways within walls.<\/li>\n<\/ul>\n\n\n\n
Code Compliance & Ratings<\/strong><\/h3>\n\n\n\n\n- Plenum:<\/strong>\u00a0Must comply with UL 910 and\u00a0NFPA 262<\/a>, which test flame spread and smoke production in horizontal airflow environments.<\/li>\n\n\n\n
- Riser:<\/strong>\u00a0It is rated under UL 1666, which tests flame propagation in vertical shafts without active air movement.<\/li>\n<\/ul>\n\n\n\n
Where Should Each Cable Type Be Installed?<\/strong><\/h2>\n\n\n\nOne of the most critical factors when selecting between Plenum and Riser Ethernet cables<\/a> is knowing where each is allowed and best suited to be installed. <\/p>\n\n\n\nPlenum Cable Applications<\/strong><\/h3>\n\n\n\nPlenum-rated cables (CMP) are required in environments where air circulates freely, typically spaces that play a role in building ventilation. These areas pose a greater fire risk because air movement can spread flames and smoke quickly.<\/p>\n\n\n\n
Here\u2019s where Plenum cables are commonly used:<\/p>\n\n\n\n
\n- Plenum space installation:<\/strong>\u00a0Drop ceilings or raised floors used for air return.<\/li>\n\n\n\n
- Air duct compatibility:<\/strong>\u00a0It is safe for use inside or adjacent to HVAC ducts.<\/li>\n\n\n\n
- HVAC areas:<\/strong>\u00a0They are necessary for\u00a0heating and cooling zones<\/a>\u00a0with shared airflow.<\/li>\n\n\n\n
- Commercial buildings with shared air systems:<\/strong>\u00a0Plenum cables are code-mandated in offices, schools, and healthcare facilities with central air distribution.<\/li>\n<\/ul>\n\n\n\n
Riser Cable Applications<\/strong><\/h3>\n\n\n\nRiser-rated cables (CMR) are intended for vertical cabling pathways that don\u2019t require airflow-safe insulation. These are still fire-resistant but not held to the same high standard as plenum cables.<\/p>\n\n\n\n
Typical uses include:<\/p>\n\n\n\n
\n- Vertical cable runs between floors:<\/strong>\u00a0It is often installed inside walls or riser shafts.<\/li>\n\n\n\n
- Multi-story building riser shafts:\u00a0<\/strong>It is Ideal for distributing\u00a0network<\/a>\u00a0connections across levels.<\/li>\n\n\n\n
- Residential building use:<\/strong>\u00a0Suitable for homes without plenum spaces or central air return systems.<\/li>\n<\/ul>\n\n\n\n
Performance & EMI Resistance<\/strong><\/h2>\n\n\n\nWhen installing Ethernet cables, it\u2019s essential to consider how they will perform under typical network conditions and whether they will be exposed to Electromagnetic Interference (EMI).<\/p>\n\n\n\n
Signal Transmission<\/strong><\/h3>\n\n\n\nBoth Plenum and Riser cables provide high-quality signal transmission<\/a>. The only notable difference is their construction, which primarily affects fire resistance and flexibility rather than transmission capabilities.<\/p>\n\n\n\nEMI Resistance:<\/strong><\/h3>\n\n\n\n\n- Plenum Cable:<\/strong>\u00a0Plenum cables have thicker insulation, which helps protect against interference in areas with a lot of electromagnetic noise.<\/li>\n\n\n\n
- Riser Cable:<\/strong>\u00a0Riser cables can resist EMI but have less shielding than plenum cables, making them better for places with low interference.<\/li>\n<\/ul>\n\n\n\n
Flexibility:<\/strong><\/h3>\n\n\n\n\n- Plenum cables are generally stiffer due to the material composition needed to meet fire safety standards. This makes installation more challenging, particularly in tight spaces.<\/li>\n\n\n\n
- Riser cables are more flexible and can be easier to route, especially in environments where the cable needs to navigate around corners or obstacles.<\/li>\n<\/ul>\n\n\n\n
Explore Our High-Quality Plenum and Riser Ethernet Cables.<\/strong><\/h2>\n\n\n\nLooking for premium Plenum and Riser Ethernet cables? CablesAndKits<\/a> offers a variety of options designed to meet NEC standards and ensure optimal performance and safety for your network installations<\/p>\n\n\n\nPlenum-Rated Ethernet Cables<\/strong><\/h3>\n\n\n\nIt is designed for air-handling spaces with enhanced flame resistance and low smoke emission.<\/p>\n\n\n\n
Cat6 Ethernet Cable, 1000′ Pull Box, 550MHz UTP, Solid, Plenum<\/strong><\/h4>\n\n\n\n![\"Cat6](\"https:\/\/res.cloudinary.com\/hdtsjhzsw\/s--eXlYdwsj--\/ovpqkc51xh1xv5fxdwgz\")
<\/p>\n\n\n\n
The Cat6 Ethernet Cable is ideal for high-speed network installations with 550 MHz bandwidth and solid copper conductors. The plenum-rated jacket (CMP) ensures fire safety in air-handling spaces.
Quick Specs<\/strong>:<\/p>\n\n\n\n\n- Bandwidth<\/strong>: 550 MHz<\/li>\n\n\n\n
- AWG<\/strong>: 23<\/li>\n\n\n\n
- Jacket<\/strong>:\u00a0Plenum<\/a>\u00a0(CMP)<\/li>\n<\/ul>\n\n\n\n
Enhance your network performance with the Cat6 Ethernet Cable perfect for high-speed applications in sensitive spaces. <\/em>Order now<\/em><\/a> and experience optimal network speed and safety.<\/em><\/p>\n\n\n\nCat5E Ethernet Cable, 1000′ Pull Box, Plenum<\/strong><\/h4>\n\n\n\n![\"Cat5E](\"https:\/\/res.cloudinary.com\/hdtsjhzsw\/s--106OOo3r--\/twsysiewrle0uootxtom\")
<\/p>\n\n\n\n
This Cat5e Ethernet Cable supports Gigabit speeds with 350 MHz bandwidth, making it ideal for general networking. Its plenum-rated jacket (CMP) ensures safe installation in air-handling spaces.
Quick Specs<\/strong>:<\/p>\n\n\n\n\n- Bandwidth<\/strong>: 350 MHz<\/li>\n\n\n\n
- AWG<\/strong>: 24<\/li>\n\n\n\n
- Jacket<\/strong>: Plenum (CMP)<\/li>\n<\/ul>\n\n\n\n
Equip your network with a reliable, plenum-rated solution ideal for safe, high-speed installations. <\/em>Shop now<\/em><\/a> for a safer and faster network experience.<\/em><\/p>\n\n\n\nRiser-Rated (Non-Plenum) Ethernet Cables<\/strong><\/h3>\n\n\n\nRiser-rated cables are perfect for vertical runs in walls or between floors. They offer fire resistance but are not suited for air-handling spaces.<\/p>\n\n\n\n
Cat5E Ethernet Cable, 1000′ Pull Box, 350MHz UTP<\/strong><\/h4>\n\n\n\n![\"Cat5E](\"https:\/\/res.cloudinary.com\/hdtsjhzsw\/s--_Lj0nZ5D--\/iv4nbm1bjwtyalnhwlkm\")
<\/p>\n\n\n\n
This Cat5e Ethernet Cable offers 350 MHz bandwidth for standard networking. Its riser-rated PVC jacket ensures safety for vertical installations in walls or between floors.
<\/strong>Quick Specs:<\/strong><\/p>\n\n\n\n\n- Bandwidth:\u00a0350 MHz (Gigabit speeds)<\/strong><\/li>\n\n\n\n
- AWG:\u00a0<\/strong>24 (Solid copper conductors)<\/li>\n\n\n\n
- Jacket:\u00a0<\/strong>PVC (CMR) (Fire-resistant for vertical installations)<\/li>\n<\/ul>\n\n\n\n
Get the Cat5e Ethernet Cable for your riser-rated applications perfect for cost-effective, safe vertical runs. <\/em>Shop now<\/em><\/a> and ensure safe and cost-effective installations.<\/em><\/p>\n\n\n\nCat6A Ethernet Cable, 1000′ Spool, 550MHz UTP<\/strong><\/h4>\n\n\n\n![\"Cat6A](\"https:\/\/res.cloudinary.com\/hdtsjhzsw\/s--kf4wk6mK--\/kdbeleasiskoi6hrc8jh\")
<\/p>\n\n\n\n
The Cat6A Ethernet Cable offers 550 MHz bandwidth and 10GbE support. The riser-rated PVC jacket ensures safe, vertical runs across multiple floors.
Quick Specs<\/strong>:<\/p>\n\n\n\n\n- Bandwidth<\/strong>: 550 MHz (Supports 10GbE)<\/li>\n\n\n\n
- AWG<\/strong>: 23 (Solid copper conductors)<\/li>\n\n\n\n
- Jacket<\/strong>:\u00a0PVC<\/a>\u00a0(CMR) (Fire-resistant for vertical runs)<\/li>\n<\/ul>\n\n\n\n
Power your network with the Cat6A Ethernet Cable perfect for high-speed vertical runs and 10GbE performance. <\/em>Book now<\/em><\/a> for fast, reliable networking.<\/em><\/p>\n\n\n\nHow to Choose the Right Cable for Your Installation<\/strong><\/h2>\n\n\n\nSelecting the correct cable type Plenum or Riser is essential for both safety and performance. To make an informed decision, consider these key factors before purchasing:<\/p>\n\n\n\n
1. Is the Building Commercial or Residential?<\/strong><\/h4>\n\n\n\n\n- Plenum-rated cables are often needed in commercial settings to meet stricter fire safety codes, especially in spaces with air handling systems.<\/li>\n\n\n\n
- Residential installations can often use Riser cables, which are more cost-effective for areas with lower\u00a0fire hazards<\/a>.<\/li>\n<\/ul>\n\n\n\n
2. Where Will the Cable Be Installed?<\/strong><\/h4>\n\n\n\n\n- Plenum cables are mandatory for air ducts or ceiling spaces due to their enhanced fire resistance.<\/li>\n\n\n\n
- If the installation involves vertical runs between floors, Riser cables are typically the best choice.<\/li>\n<\/ul>\n\n\n\n
3. What Level of Fire Resistance Do You Need?<\/strong><\/h4>\n\n\n\n\n- For installations requiring maximum fire safety, Plenum cables are preferred.<\/li>\n\n\n\n
- For installations that primarily need to meet basic code requirements, Riser cables offer a practical and more affordable option.<\/li>\n<\/ul>\n\n\n\n
Conclusion<\/strong><\/h2>\n\n\n\nChoosing the right cable<\/a> depends on your installation\u2019s specific needs. Plenum cables offer the highest fire safety standards and are required for certain environments like air ducts or shared air systems. Riser cables, on the other hand, offer a more economical option for non-airflow spaces, such as vertical runs between floors.<\/p>\n\n\n\nBefore making a purchase, be sure to confirm the cable requirements for your specific environment. For a wide selection of high-quality options, visit CablesAndKits.com<\/a>.<\/p>\n\n\n\nAdditional Learning Center Resources<\/p>\n\n\n\n
\n- Mastering Network Cable Management: Overcoming Challenges with Top Solutions and Products<\/u><\/strong><\/a><\/li>\n\n\n\n
- Client-Server Networks: How They Work and Why They’re Essential?<\/u><\/strong><\/a><\/li>\n\n\n\n
- What Is a Cat6 Ethernet Cable? Unraveling the Basics of High-Speed Networking<\/u><\/strong><\/a><\/li>\n\n\n\n
- From Installation to Optimization: The Complete Data Center Cabling Guide<\/u><\/strong><\/a><\/li>\n\n\n\n
- What is a Direct Attach Copper (DAC) Cable? Common Types And Uses<\/u><\/strong><\/a><\/li>\n\n\n\n
- Transceiver vs Transmitter \u2013 Which One is Right for Your Communication Needs?<\/u><\/strong><\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
Planning a network setup? Have you considered whether your Ethernet cables meet building code requirements or just assumed they do? When setting up a network whether at home, in a corporate office, or deep inside a data center, most people focus on speed, bandwidth, and devices. But there\u2019s a hidden choice that can make or break […]<\/p>\n","protected":false},"author":3,"featured_media":1583,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1582","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ethernet"],"acf":[],"contentshake_article_id":"","yoast_head":"\n
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A Plenum Ethernet cable<\/a> is designed with a special jacket made from low-smoke, fire-retardant materials like FEP (Fluorinated Ethylene Propylene). These cables are built to comply with strict safety regulations for areas where air circulates known as plenum spaces such as air ducts and drop ceilings.<\/p>\n\n\n\n A Riser Ethernet cable<\/a> uses a PVC (Polyvinyl Chloride) jacket that meets the fire-resistance requirements for vertical runs between floors. These are commonly used in riser shafts, elevator shafts, or walls anywhere not exposed to open airflow.<\/p>\n\n\n\n Regarding network infrastructure, the terms Plenum and Riser aren\u2019t just labels. They refer to crucial safety and installation distinctions affecting performance, compliance, and legal liability. <\/p>\n\n\n\n One of the most critical factors when selecting between Plenum and Riser Ethernet cables<\/a> is knowing where each is allowed and best suited to be installed. <\/p>\n\n\n\n Plenum-rated cables (CMP) are required in environments where air circulates freely, typically spaces that play a role in building ventilation. These areas pose a greater fire risk because air movement can spread flames and smoke quickly.<\/p>\n\n\n\n Here\u2019s where Plenum cables are commonly used:<\/p>\n\n\n\n Riser-rated cables (CMR) are intended for vertical cabling pathways that don\u2019t require airflow-safe insulation. These are still fire-resistant but not held to the same high standard as plenum cables.<\/p>\n\n\n\n Typical uses include:<\/p>\n\n\n\n When installing Ethernet cables, it\u2019s essential to consider how they will perform under typical network conditions and whether they will be exposed to Electromagnetic Interference (EMI).<\/p>\n\n\n\n Both Plenum and Riser cables provide high-quality signal transmission<\/a>. The only notable difference is their construction, which primarily affects fire resistance and flexibility rather than transmission capabilities.<\/p>\n\n\n\n Looking for premium Plenum and Riser Ethernet cables? CablesAndKits<\/a> offers a variety of options designed to meet NEC standards and ensure optimal performance and safety for your network installations<\/p>\n\n\n\n It is designed for air-handling spaces with enhanced flame resistance and low smoke emission.<\/p>\n\n\n\n The Cat6 Ethernet Cable is ideal for high-speed network installations with 550 MHz bandwidth and solid copper conductors. The plenum-rated jacket (CMP) ensures fire safety in air-handling spaces. Enhance your network performance with the Cat6 Ethernet Cable perfect for high-speed applications in sensitive spaces. <\/em>Order now<\/em><\/a> and experience optimal network speed and safety.<\/em><\/p>\n\n\n\n This Cat5e Ethernet Cable supports Gigabit speeds with 350 MHz bandwidth, making it ideal for general networking. Its plenum-rated jacket (CMP) ensures safe installation in air-handling spaces. Equip your network with a reliable, plenum-rated solution ideal for safe, high-speed installations. <\/em>Shop now<\/em><\/a> for a safer and faster network experience.<\/em><\/p>\n\n\n\n Riser-rated cables are perfect for vertical runs in walls or between floors. They offer fire resistance but are not suited for air-handling spaces.<\/p>\n\n\n\n This Cat5e Ethernet Cable offers 350 MHz bandwidth for standard networking. Its riser-rated PVC jacket ensures safety for vertical installations in walls or between floors. Get the Cat5e Ethernet Cable for your riser-rated applications perfect for cost-effective, safe vertical runs. <\/em>Shop now<\/em><\/a> and ensure safe and cost-effective installations.<\/em><\/p>\n\n\n\n The Cat6A Ethernet Cable offers 550 MHz bandwidth and 10GbE support. The riser-rated PVC jacket ensures safe, vertical runs across multiple floors. Power your network with the Cat6A Ethernet Cable perfect for high-speed vertical runs and 10GbE performance. <\/em>Book now<\/em><\/a> for fast, reliable networking.<\/em><\/p>\n\n\n\n Selecting the correct cable type Plenum or Riser is essential for both safety and performance. To make an informed decision, consider these key factors before purchasing:<\/p>\n\n\n\n Choosing the right cable<\/a> depends on your installation\u2019s specific needs. Plenum cables offer the highest fire safety standards and are required for certain environments like air ducts or shared air systems. Riser cables, on the other hand, offer a more economical option for non-airflow spaces, such as vertical runs between floors.<\/p>\n\n\n\n Before making a purchase, be sure to confirm the cable requirements for your specific environment. For a wide selection of high-quality options, visit CablesAndKits.com<\/a>.<\/p>\n\n\n\n Additional Learning Center Resources<\/p>\n\n\n\n Planning a network setup? Have you considered whether your Ethernet cables meet building code requirements or just assumed they do? When setting up a network whether at home, in a corporate office, or deep inside a data center, most people focus on speed, bandwidth, and devices. But there\u2019s a hidden choice that can make or break […]<\/p>\n","protected":false},"author":3,"featured_media":1583,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1582","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ethernet"],"acf":[],"contentshake_article_id":"","yoast_head":"\nRiser Ethernet Cables<\/strong><\/h3>\n\n\n\n
Key Differences Between Plenum and Riser Ethernet Cables<\/strong><\/h2>\n\n\n\n
Fire Safety Rating<\/strong><\/h3>\n\n\n\n
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Installation Environment<\/strong><\/h3>\n\n\n\n
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Cost Comparison<\/strong><\/h3>\n\n\n\n
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Flexibility & Ease of Use<\/strong><\/h3>\n\n\n\n
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Code Compliance & Ratings<\/strong><\/h3>\n\n\n\n
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Where Should Each Cable Type Be Installed?<\/strong><\/h2>\n\n\n\n
Plenum Cable Applications<\/strong><\/h3>\n\n\n\n
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Riser Cable Applications<\/strong><\/h3>\n\n\n\n
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Performance & EMI Resistance<\/strong><\/h2>\n\n\n\n
Signal Transmission<\/strong><\/h3>\n\n\n\n
EMI Resistance:<\/strong><\/h3>\n\n\n\n
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Flexibility:<\/strong><\/h3>\n\n\n\n
\n
Explore Our High-Quality Plenum and Riser Ethernet Cables.<\/strong><\/h2>\n\n\n\n
Plenum-Rated Ethernet Cables<\/strong><\/h3>\n\n\n\n
Cat6 Ethernet Cable, 1000′ Pull Box, 550MHz UTP, Solid, Plenum<\/strong><\/h4>\n\n\n\n
Quick Specs<\/strong>:<\/p>\n\n\n\n\n
Cat5E Ethernet Cable, 1000′ Pull Box, Plenum<\/strong><\/h4>\n\n\n\n
Quick Specs<\/strong>:<\/p>\n\n\n\n\n
Riser-Rated (Non-Plenum) Ethernet Cables<\/strong><\/h3>\n\n\n\n
Cat5E Ethernet Cable, 1000′ Pull Box, 350MHz UTP<\/strong><\/h4>\n\n\n\n
<\/strong>Quick Specs:<\/strong><\/p>\n\n\n\n\n
Cat6A Ethernet Cable, 1000′ Spool, 550MHz UTP<\/strong><\/h4>\n\n\n\n
Quick Specs<\/strong>:<\/p>\n\n\n\n\n
How to Choose the Right Cable for Your Installation<\/strong><\/h2>\n\n\n\n
1. Is the Building Commercial or Residential?<\/strong><\/h4>\n\n\n\n
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2. Where Will the Cable Be Installed?<\/strong><\/h4>\n\n\n\n
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3. What Level of Fire Resistance Do You Need?<\/strong><\/h4>\n\n\n\n
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Conclusion<\/strong><\/h2>\n\n\n\n
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