HPE 813874-B21 Compatible 10G SFP+ to RJ45 Transceiver 30m | 10GBASE-T Copper, Multi-Rate NBASE-T, Zero-Alarm HPE Compatibility | HYTOPTODEVICE
Product Overview
HYTOPTODEVICE 813874-B21 is a high-performance 10G SFP+ to RJ45 Copper Transceiver Module, fully compatible with HPE networking hardware.
Engineered for high-density data centers and enterprise networks, it provides reliable 10 Gbps throughput over Cat6a/Cat7 cabling for distances up to 30 meters. Featuring multi-rate 1G/2.5G/5G/10G auto-negotiation, low power consumption, and low latency, it offers a cost-effective solution to upgrade your existing copper infrastructure to 10GbE.
Why Choose SFP-10G-T?
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100% HPE Compatible: Seamless plug-and-play integration with Top-of-Rack (ToR) switches and routers.
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Multi-Rate Flexibility: Auto-negotiates between 10G, 5G, 2.5G, and 1G rates for flexible network scaling.
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Energy Efficient: Low power consumption compliant with IEEE 802.3az Energy-Efficient Ethernet (EEE).
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Standard Compliant: Fully complies with IEEE 802.3an, SFF-8431, and SFP+ MSA.
Key Technical Specifications
The 813874-B21 is a hot-pluggable 10GBASE-T SFP+ to RJ45 transceiver module designed for high-speed Ethernet connections up to 30 meters over Cat6a/Cat7 copper cabling. Operating on a single 3.3V power supply, it supports multi-rate 1G/2.5G/5G/10G auto-negotiation and fully complies with SFF-8431, IEEE 802.3an, and IEEE 802.3az standards.
| HPE Compatible |
813874-B21 |
Vendor Name |
HYTOPTODEVICE |
| Form Factor |
SFP+ (Hot-pluggable) |
Data Rate |
10 Gbps (1G/2.5G/5G/10G Auto-negotiation) |
| Connector |
RJ-45 |
Cable Distance |
30m |
| Media |
Copper |
Cable Type |
Cat6a/Cat7 |
| Max. Power Consumption |
≤2.5W |
DDM Support |
No |
| Protocols |
IEEE 802.3an, IEEE 802.3az, SFF-8431 |
Operation Temperature |
0 to 70°C (32 to 158°F) |
Usage Guidelines & Best Practices
To ensure optimal performance, broad device compatibility, and extended hardware lifespan, please follow these deployment best practices for your 10GBASE-T SFP+ copper transceiver:
1. Cabling Requirements & Distance Limits
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Recommended Cabling: For maximum 10Gbps transmission up to 30 meters, always use high-quality Cat6A or Cat7 Shielded Twisted Pair (STP) cables.
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Legacy Cable Limitations: Unshielded Cat6 cables can theoretically support 10G up to 30–55m under ideal lab conditions, but in production environments, they are highly prone to signal degradation. Cat6A STP is strongly recommended.
2. EMI Protection & Crosstalk Mitigation
High-speed 10Gbps copper signals are extremely sensitive to Electromagnetic Interference (EMI) and Alien Crosstalk (AXT).
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Use fully grounded STP/FTP cables and shielded RJ45 connectors.
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Avoid running network cables parallel to high-voltage power lines, fluorescent lighting, or heavy industrial machinery.
3. Thermal & Power Management
10GBASE-T transceivers consume significantly more power (typically 2.5W–3.0W) and generate considerably more heat than optical transceivers.
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Port Spacing: Avoid populating adjacent SFP+ ports with copper transceivers continuously.
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Airflow Optimization: Leave at least one empty port between copper modules (e.g., checkerboard or staggered layout) to facilitate heat dissipation and prevent thermal throttling.
4. Insertion & Hot-Plugging Sequence
While the transceiver is hot-swappable, following the correct sequence prevents electrical surge or signaling glitches:
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Insert Module: Plug the transceiver into the SFP+ slot until it clicks, then pull down the bail latch to secure it in place.
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Connect Cable: Plug the RJ45 cable into the transceiver.
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To disconnect, always remove the RJ45 cable first before releasing the module latch.
5. System Recognition & Auto-Negotiation
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Firmware: Ensure your switch or device firmware is updated to support 10GBASE-T copper transceivers.
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Negotiation Delay: Allow 5–15 seconds after connection for the network OS (e.g., Juniper Junos, Cisco NX-OS) to auto-negotiate link speed and duplex status.
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Manual Override: If the link fails to establish, manually set the port speed to 10G Full-Duplex instead of relying on auto-negotiation.
6. Physical Handling & Care
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Always handle the module by its metallic casing or bail latch.
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Do not touch the PCB gold fingers to prevent electrostatic discharge (ESD) and contact contamination.
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Do not apply excessive force when plugging in or removing the RJ45 connector.
Full Compatibility List & Firmware Adaptation
All HYTOPTODEVICE 10G SFP+ to RJ45 transceiver 30m complete continuous runtime testing and multi-version firmware verification on genuine HPE hardware. Custom short-range EEPROM perfectly matches HPE official module identification protocol. It resolves typical compatibility problems of generic modules including alarm popups, unactivated ports and rate negotiation failure.
1. Validated HPE Hardware Platforms
Plug-and-play compatible with mainstream HPE equipment with SFP+ slots:
- HPE BladeSystem c-Class Servers
- HPE ProLiant Series Servers
- HPE FlexFabric Enterprise and Data Center Switches
2. Cross-Brand Compatibility
Complying with universal SFP+ MSA standards, this 10G SFP+ RJ45 module supports normal communication with Arista, Cisco, Brocade, H3C and other brand equipment, adapting to multi-brand hybrid network architectures.
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Standard / Open Platforms: Plug-and-play compatible out of the box with open-architecture hardware such as MikroTik, TP-Link, and Fortinet.
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Vendor-Locked Platforms: We offer complimentary OEM firmware coding for strict or vendor-locked systems (e.g., Arista, Juniper, H3C, Huawei, Brocade, NVIDIA/Mellanox) prior to shipment—ensuring instant recognition and eliminating "unsupported transceiver" warnings.
3.Value-Added Compatibility Services & Self-Programming Support
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On-Site Recoding Solutions: Gain full control with our optional smart coding boards and software, enabling your team to rewrite EEPROM compatibility codes on demand.
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Free Lifetime Firmware Maintenance: Enjoy complimentary firmware update downloads whenever switch OS versions upgrade or new hardware platforms are released.
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Custom Code Adaptation: Need support for specialized or legacy network systems? Our engineers offer free custom firmware tailoring to guarantee 100% link-up.
Primary Application Scenarios
Tailored for short-range high-density networking, this 10G SFP+ to RJ45 transceiver 30m focuses on indoor close-distance 10G copper transmission scenarios:
- In-Rack Server 10G Uplink: Build low-cost 10G short links between top-of-rack switches and rack servers.
- Intra-Room Switch Stacking: Implement 10G high-speed stacking for adjacent HPE switches within the same computer room.
- High-Density Wireless Backhaul: Deliver 2.5G/5G/10G adaptive uplink for densely deployed Wi-Fi 6/7 wireless APs.
- Short-Span Leaf-Spine Fabric Connection: Suitable for short-distance row-to-row interconnection in small and medium data centers.
- Enterprise Indoor Network Micro-Upgrade: Rapidly upgrade local 1G links to 10G without reworking short-distance copper wiring.
Connectivity Solutions(Applications)
1.Switch-to-Switch 10G Copper Interconnection
Deploy HPE-compatible 10G SFP+ to RJ45 transceiver to build stable short-range 10G copper trunk links between HPE switches. It targets intra-room adjacent equipment interconnection. This short-range module delivers low signal attenuation within 30 meters. It saves fiber deployment costs and supports reliable long-term data exchange for switch clusters.
2.10G to 10G Switch to Adapter Card Links
This 30m **10G SFP+ to RJ45 module** enables direct 10G high-speed point-to-point links between HPE switch SFP+ ports and server or storage network adapter cards. Ideal for in-rack short-distance wiring. It converts optical slots to standard RJ45 copper interfaces compatible with mainstream 10G copper NICs. It simplifies cabinet wiring and reduces potential link fault points.
3.10G Structured Cabling System Deployment
Optimized for short-distance indoor structured cabling projects. The HPE compatible 10G SFP+ to RJ45 30m transceiver works perfectly with Cat6A/Cat7 high-grade copper cabling systems. It supports standardized 10G network rollout for office buildings and computer rooms. It reuses existing copper infrastructure and achieves low-cost 1G-to-10G upgrade without large-scale rewiring.
4.Spine-Leaf 10G Copper Interconnection
Designed for compact HPE data center leaf-spine architectures. This 10G SFP+ to RJ45 30m transceiver fits short-distance row-to-row interconnection between leaf and spine switches. With low power consumption and consistent signal output, it expands east-west traffic throughput. Compared with optical transceivers, it significantly cuts construction and operation expenditure for small and medium data center fabrics.
The Core Features
1.High-Performance 10G with Lower Power & Heat
This HPE-compatible **10G SFP+ to RJ45 transceiver 30m** adopts premium professional PHY chip solution. Optimized low-power circuit architecture controls full-load power consumption strictly between 2.0W–2.5W. It generates less heat than ordinary long-range copper modules. It lowers thermal load in dense HPE cabinet environments and reduces long-term operation energy consumption. It supports 24/7 continuous network operation.
2.Seamless Integration with Zero-Alarm Plug-and-Play
Compliant with SFF-8431 SFP+ MSA international standards. This 10G SFP+ to RJ45 transceiver supports tool-free hot-swap. Engineers can insert or remove modules online without shutting down HPE network hardware. Preloaded exclusive HPE 813874-B21 customized EEPROM enables seamless native recognition across all mainstream EOS firmware versions. It achieves zero-alarm and zero-port-block plug-and-play to simplify daily network maintenance.
3.100% Real-Device Tested for Proven Interoperability
Every **10G SFP+ to RJ45 transceiver 30m** undergoes rigorous real-machine interoperability testing on genuine HPE hardware covering multiple firmware iterations. Comprehensive multi-device linkage testing eliminates compatibility risks such as unrecognized hardware, rate negotiation failure and unstable links. It maintains reliable interoperability in standalone HPE networks and multi-brand hybrid network environments.
4. 100% Full Testing & Long-Term Reliability
We abandon sampling inspection and implement 100% full-item factory testing for every **10G SFP+ to RJ45 transceiver 30m**. Test items include line-rate BER detection, high-low temperature cycle aging, long-duration pressure testing and real HPE hardware link verification. Supported by high-quality chips and strict quality control, the module delivers consistent batch performance and outstanding anti-aging capability.
FAQ
Q1: Can all neighboring SFP+ slots be fully populated with 10G SFP+ to RJ45 transceivers on one HPE switch?
A1: It is not recommended. Filling every adjacent port with copper transceivers may overload switch thermal capacity and per-port power limits. Deploy HYTOPTODEVICE 10G SFP+ to RJ45 transceiver in staggered checkerboard layout to maintain stable round-the-clock operation.
Q2: What typical power draw can I expect from a short-range 10G SFP+ to RJ45 transceiver?
A2: Our 30m 10G SFP+ to RJ45 transceiver belongs to latest-generation hardware, consuming 2.0W–2.5W. Older long-reach copper variants can draw above 3.0W and create higher thermal stress inside cabinets.
Q3: Why cannot most SFP+ copper transceivers reach 100m 10GBASE-T transmission?
A3: SFP+ MSA restricts single slot power roughly within 2.5W–3.0W. Delivering stable 10G signals over 100m copper requires 4W–5W power, exceeding hardware limits. Select our HPE compatible 30m 10G SFP+ to RJ45 transceiver for qualified short-distance links.
Q4: What triggers auto-negotiation failures between 10G SFP+ to RJ45 transceivers and server onboard NICs?
A4: Negotiation errors usually happen when switch ports are forced to fixed speed while the copper PHY expects dynamic auto-negotiation. Matching negotiation parameters on both ends resolves the issue when deploying HYTOPTODEVICE 10G SFP+ to RJ45 transceivers.
Q5: Should network architects choose DAC cables or 10G SFP+ to RJ45 transceivers for ToR in-rack server connections?
A5: Passive DAC cables are preferable for pure intra-rack links. DAC consumes less than 0.1W, generates nearly no heat and delivers ultra-low latency. Choose our 10G SFP+ to RJ45 transceiver when you need to reuse existing copper structured cabling infrastructure.
Q6: Can a 10G SFP+ to RJ45 transceiver work inside a 25G SFP28 switch port?
A6: Most SFP28 ports offer backward compatibility with 10G SFP+ modules. You can plug our
10G SFP+ to RJ45 transceiver into a 25G slot, but the maximum achievable link speed will be capped at 10Gbps.
Q7: Can I directly pull out a 10G SFP+ to RJ45 transceiver by dragging the Ethernet cable?
A7: Absolutely not. Pulling the Cat6A cable may break the internal RJ45 latch or damage the switch SFP+ cage. Always release the module pull tab before removing our 10G SFP+ to RJ45 transceiver.
Q8: Reliable methods to evaluate link performance of 10G SFP+ to RJ45 transceiver connections?
A8: Run continuous iPerf3 throughput tests to detect hidden packet loss. Combine testing with BERT bit error measurement and track FCS/CRC error counters on the switch. This combined assessment accurately judges signal integrity of links built with HYTOPTODEVICE 10G SFP+ to RJ45 transceiver.
Q9: Does a 10G SFP+ to RJ45 transceiver support Wake-on-LAN magic packet transmission?
A9: WoL operation relies on end-to-end hardware compatibility. Our
10G SFP+ to RJ45 transceiver forwards magic packet frames normally, provided the connected server NIC and HPE switch port are properly configured to enable Wake-on-LAN.
Q10: Why does the copper link negotiate only 1Gbps instead of full 10G bandwidth with 10G SFP+ to RJ45 transceiver?
A10: This negotiation fault is mostly triggered by damaged Ethernet cables, incomplete twisted pairs or low-grade wiring incapable of transporting 10G signals. Another common cause is the peer NIC hardware capped at maximum 1G speed. Deploy qualified Cat6A cabling to resolve most 10G negotiation failures.
Q11: Will Cat6A patch panel termination quality affect maximum reach of 10G SFP+ to RJ45 transceivers?
A11: Poor punch-down termination creates near-end crosstalk and return loss. It reduces stable transmission distance for our 10G SFP+ to RJ45 transceiver. Precise, standardized cabling termination is critical to achieve rated 30m performance.
Why Network Engineers Choose HYTOPTODEVICE
HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.
- Up to 70% cost savings vs OEM, transparent pricing & flexible bulk rates, supported quality returns
- 100% real-device compatible with Cisco, Huawei,Dell,Juniper, and Arista
- ISO 9001:2015 Shenzhen factory, full lineup: 1.25G/10G/25G/40G/100G/200G/400G/800G/1.6T transceivers
- Ample stock, fast global DHL/FedEx shipping in 3–5 working days
- Free pre-sales engineering support for custom EEPROM & private label firmware
- Real switch test videos available for pre-purchase review; inspection & shipping videos provided per order
“Phenomenal performance. We deployed 200 HYTOPTODEVICE SFP modules to replace Cisco OEMs in our backbone network. Result? Zero compatibility issues and a 60% reduction in costs. Highly recommended for mission-critical networks."— Senior Network Engineer, Regional Telecom, Australia
Quality Certification & Compliance
At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final visual inspection, from IQC、IPQC、FQC to OQC, our processes ensure global compliance and reliability.
We adhere to rigorous standards for our SFP modules and network solutions:
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ISO 9001: Certified quality management and production consistency.
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CE & FCC: Fully compliant for seamless Global Market Access.
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RoHS: Committed to environmental responsibility and hazardous material control.
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Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.
Certified Quality. Global Standards. Guaranteed Performance.
Rigorous Industrial Product Testing
100% 3rd Party Compatible
Partial Test Demonstration
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