HPE 813874-B21 Compatible 10GBASE-T SFP+ Copper Transceiver for BladeSystem c-Class FlexFabric
HP compatible 813874-B21 - Key Features
- Compatibility: HP
- Media Type: Twisted Pair CAT 6A/7 cable
- Fiber Count: CAT 5/5/7
- Connector: RJ45
- Maximum Distance: 30 m
- Supported Data Rate: 1 Gbps - 10 Gbps
- Temperature Range: Standard 0°-65°C
HP 813874-B21 Price
HP compatible 813874-B21 Specifications
Form Factor | SFP+ |
Media Type | Twisted Pair CAT 6A/7 cable |
Fiber Count | CAT 5/5/7 |
Connector | RJ45 |
Maximum Distance | 30 m |
Supported Data Rate | 1 Gbps - 10 Gbps |
Supported Ethernet Applications | 1000Base-T (Gigabit Ethernet copper), 10GBase-T (10 Gigabit Ethernet copper), 2.5GBase-T, 5GBase-T |
Temperature Range | Standard 0°-65°C |
Power | +3.3V single power supply |
Compliance | CE,IEEE 802.3ae,IEEE 802.3an,IEEE 802.3bz NBASE-T and MGBASE-T,INF-8074i,RoHS,SFP MSA |
HP compatible 813874-B21 Datasheet
v6Complete technical specifications and product details
HP compatible 813874-B21 Description
EdgeOptic's HPE 813874-B21 compatible is an HPE-coded 10GBASE-T copper SFP+ transceiver for HPE BladeSystem c-Class enclosures and the FlexFabric switch modules that populate their interconnect bays. EdgeOptic programs the module EEPROM to match the HPE 813874-B21 vendor profile, so the transceiver is accepted as an HPE-branded module by the BladeSystem enclosure inventory and the Comware-based FlexFabric switches. The part ships with the same 30 m reach and 10GBASE-T electrical specification as the OEM 813874-B21.
Platform scope for this SKU is HPE BladeSystem c7000 enclosures with FlexFabric switch modules and HPE BladeSystem interconnect slots. Typical deployment is the BL460c Gen9 era chassis, where the 813874-B21 plugs into SFP+ ports on Comware-based FlexFabric switch blades. The OEM 813874-B21 has a documented limitation on HPE ProLiant server network adapters: HPE community threads confirm that 813874-B21 does not initialise correctly in HPE 530SFP+ server NIC slots. That limitation is an EEPROM-level behaviour, so the EdgeOptic compatible carries the same scope. Procurement for ProLiant rack-server SFP+ NICs should use the R0R41B compatible instead.
The transceiver operates per IEEE 802.3an for 10GBASE-T and IEEE 802.3az for Energy Efficient Ethernet where the host port supports it, with multi-rate fallback to 2.5GBASE-T, 5GBASE-T and 1000BASE-T. Reach is up to 30 m on Cat6a or Cat7 unshielded twisted-pair. Electrical and management interfaces follow SFF-8431 and SFF-8432. Operating temperature covers 0 to 65 °C commercial grade with CE and RoHS certification. Copper 10GBASE-T modules draw more power than fibre SFP+ and require a high-power SFP+ cage, which HPE BladeSystem FlexFabric switch blades provide on their SFP+ ports.
Because this is a copper module, DOM telemetry is scoped to the fields that apply to a non-optical SFP+: case temperature, supply voltage, and link status. Transmit optical power, receive optical power, and laser bias current do not exist on this part and are not reported. The 813874-B21 ordering code predates the R0R41A / R0R41B revision pair; R0R41B is the same physical hardware with EEPROM coding for current compute-era SKUs. 813874-B21 remains the BladeSystem-era ordering code and is the correct part reference for FlexFabric interconnect procurement.
For volume pricing, BladeSystem c7000 confirmation, or guidance on the BladeSystem vs ProLiant SFP+ scope, contact our sales team.
Frequently Asked Questions
Will the 813874-B21 work in an HPE ProLiant server's SFP+ NIC, for example the HPE 530SFP+?
No. The OEM 813874-B21 is designed for HPE FlexFabric Comware-based switches and BladeSystem c-Class interconnect slots, not for HPE ProLiant server SFP+ NIC adapters. HPE community threads document that 813874-B21 does not initialise in HPE 530SFP+ server adapters. That behaviour is an EEPROM scope, so the EdgeOptic compatible matches the same restriction. For ProLiant rack-server SFP+ NICs use the R0R41B compatible (or R0R41A for non-ConnectX-6 environments).
Is 813874-B21 compatible with HPE BladeSystem c7000 and BL460c Gen9?
Yes. 813874-B21 is the native BladeSystem c-Class 10GBASE-T SFP+ transceiver for the c7000 enclosure and the BL460c Gen9 era chassis. It plugs into SFP+ ports on HPE FlexFabric switch modules deployed in the c7000 interconnect bays. Verify the specific FlexFabric switch model firmware against HPE's BladeSystem transceiver support matrix for the enclosure before deployment.
What is the relationship between 813874-B21 and HPE R0R41B?
813874-B21 and R0R41B are the same 10GBASE-T SFP+ copper hardware with different EEPROM programming. 813874-B21 is the BladeSystem-era ordering code, coded for FlexFabric switch modules and c7000 interconnects. R0R41B (HPE spare P15891-002) is the compute-era ordering code, coded for ProLiant rack server SFP+ NICs with ConnectX-6 support. The two ordering codes are not interchangeable across platform classes; procurement should match the ordering code to the target platform class.