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Small rectangular SFP+ transceiver with an RJ45 copper port and metal housing

STARTECH

STARTECH 813874B21ST 10GBASE-T RJ45 SFP+ transceiver

SKU CH-KZXB-2SHQ3 MPN 813874B21ST

A copper SFP+ transceiver delivering 10 Gbps over twisted-pair cable up to 30 metres, hot-swappable and tested for full HPE compatibility

  • Device TypeTransceiver
  • StandardsIEEE 802.3an 10GBASE-T
  • ProtocolsTCP/IP
  • Max Distance30m (98.4 ft)
  • Transfer Rate10 Gbps
  • Power AdapterPower Consumption (In Watts): 2.3W (max.)
  • Hot-swappable SFP+ module enables quick upgrades without network downtime
  • HPE 813874-B21 compatible transceiver guarantees seamless integration with HP switches
  • 10 Gbps over copper cabling up to 30 meters delivers high-speed connectivity
  • Low 2.3 W power draw reduces energy costs in dense deployments
  • Operates reliably from 0 °C to 70 °C for standard data-centre environments

Purpose-built HP switch module

The StarTech.com 813874B21ST is an SFP+ copper transceiver engineered for 10 Gbps Ethernet over twisted-pair cabling. It targets network administrators who need to add or replace 10GBASE-T links on HPE switches and routers without deploying fibre infrastructure.

Installation notes

The module uses a hot-swappable SFP+ form factor so it can be inserted or removed while the host is powered, avoiding downtime during upgrades. Compatibility is validated against the HP 813874-B21 part number; using it in non-HPE equipment is not supported by the vendor testing programme.

Sustained-load behaviour

Maximum power draw is 2.3 W and the operating temperature range spans 0 to 70 °C, allowing continuous 10 Gbps throughput within standard data-centre conditions. The 30 metre reach limit applies to Cat6a or better copper; longer runs will require a different media type.

Highlights

  • Hot-swappable SFP+ module enables quick upgrades without network downtime
  • HPE 813874-B21 compatible transceiver guarantees seamless integration with HP switches
  • 10 Gbps over copper cabling up to 30 meters delivers high-speed connectivity
  • Low 2.3 W power draw reduces energy costs in dense deployments
  • Operates reliably from 0 °C to 70 °C for standard data-centre environments

Specifications

BrandStarTech.com
Model813874B21ST
Device TypeTransceiver
StandardsIEEE 802.3an 10GBASE-T
ProtocolsTCP/IP
Max Distance30m (98.4 ft)
Transfer Rate10 Gbps
Power AdapterPower Consumption (In Watts): 2.3W (max.)
TemperatureOperating Temperature: 0 ~ 70 degree Celsius
Storage Temperature: -40 ~ 90 degree Celsius
Humidity95%
Feature100% compatibility with HP 813874-B21 guaranteed
StarTech.com SFP modules are backed by a lifetime warranty
Uses a cost-effective cabling alternative to fiber-optic set ups
Meets or exceeds OEM specifications and MSA (Multi-Source Agreement) industry standards
Hot-swappable with fiber-optic modules
Dimensions0.50" x 0.50" x 2.70"
Weight0.05 lb.
Package Contents1 x SFP+ Transceiver
Shipping weight0.05 kg
Package size122 × 76 × 33 mm

Questions about this item

How can I confirm the 10GBASE-T link is active after inserting the module?

Check the switch port LEDs for a solid link light at 10 Gbps and verify the interface shows 10GBASE-T with no errors in the HP switch management console.

What comes in the package and what must I source separately?

The box contains one SFP+ transceiver; you must provide Cat6a or better twisted-pair patch cables and an HP switch or router with an SFP+ cage that supports 10GBASE-T.

Which version should I choose for a 30-metre run in an HP BladeSystem c-Class enclosure?

This 813874B21ST model is the correct HPE-compatible copper SFP+ for 10 Gbps up to 30 metres in BladeSystem c-Class and other supported HP switches.

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