MPN: 647586-B21·By: HPE
Ships from the US.
Order by 1:00 PM CST for overnight shipping
Buying in volume or need a PO?
Have a target price for 647586-B21? Call +1 (551) 421-5162 or request a bulk quote and our sales team will reply within one business day.
The HPE FlexFabric 10Gb 2-port 554FLB Adapter 647586-B21 is a dual-port 10Gb Ethernet FlexibleLOM designed for HPE c-Class ProLiant BladeSystem servers in designated FlexibleLOM slots. It provides two 10Gb ports that together deliver up to 40 Gbps aggregate full duplex theoretical bandwidth, with each port supporting 20,000 Mbps full duplex Ethernet transfer rate. The adapter supports Virtual Connect Flex-10, allowing each 10Gb port to be divided into four connections when used with compatible interconnects. It requires a minimum of 2 GB of server memory for proper operation. The 554FLB adapter supports linking at 1000 Mbps or 10000 Mbps when not connected to a Flex-10 device. When connected to a 1Gb Ethernet interconnect, the adapter operates at 1000 Mbps, helping environments align link speeds with existing blade enclosure networking.
| Manufacturer part # | 647586-B21 |
|---|---|
| Brand | HPE |
| Condition | New |
| Model | FlexFabric 10Gb 2-port 554FLB Adapter |
| Bus Type | PCI Express 2.0 x8 |
| Data Rate | Two ports, each at 20 Gb/s bidirectional; 40 Gb/s aggregate bidirectional theoretical bandwidth |
| Form Factor | FlexibleLOM |
| Product Line | HPE FlexFabric Adapters |
| Product Type | 10Gigabit Ethernet card |
| Onboard Memory | 128 MB |
| Protocols Supported | TCP/IP; TOE; FCoE; iSCSI |
Blade FlexibleLOM 10GbE adapter for selected HPE ProLiant Gen8 blade servers.
Quickspec for 647586-B21 lists supported servers as HPE ProLiant BL460c Gen8, BL420c Gen8, BL465c Gen8, BL660c Gen8, WS460c Gen8.
Suitable for HPE c-Class ProLiant BladeSystem servers using designated FlexibleLOM slots, leveraging the dual 10Gb ports for high-throughput blade networking.
Useful where two 10Gb ports with up to 40 Gbps aggregate full duplex bandwidth are required to consolidate multiple traffic types on fewer physical links.
Designed for deployments using Virtual Connect Flex-10, where each 10Gb port can be divided into multiple connections to support segmented workloads on blade servers.
Applicable in environments needing both 1000 Mbps and 10000 Mbps link options, with support for 1000 Mbps operation when connected to a 1Gb Ethernet interconnect.
Details
Shipping, warranty & returns
No reviews yet — be the first to review this part.
Secure SSL checkout. Visa, Mastercard, Amex and Discover accepted. ACH / wire available for businesses.
New, certified-refreshed and OEM stock with guaranteed compatibility, backed by warranty on every part.
We process quotes, POs, stock documentation and compliance invoicing.
[email protected]| Link Speeds Supported | 1000 Mbps or 10000 Mbps when not connected to a Flex-10 device; 1000 Mbps when connected to 1 Gb Ethernet interconnect |
|---|
| Aggregate Bandwidth | 40 Gbps aggregate full duplex theoretical bandwidth |
|---|---|
| Supported Media Type | 10GBase-KR backplane |
| Power Consumption | 8.6 W idle; 10 W maximum |
|---|
| Ports | 2 x 10GbE ports |
|---|---|
| Host Interface | PCIe 2.0 x8 |
| Network Processor | Emulex BE3 |
| Interface Supported | 10Gb Ethernet; FCoE; iSCSI |
Fits blade configurations that can allocate at least 2 GB of server memory, meeting the adapter’s minimum memory requirement for reliable operation.
The HPE FlexFabric 10Gb 2-port 554FLB Adapter 647586-B21 is designed for HPE c-Class ProLiant BladeSystem servers. It installs into the designated FlexibleLOM slots on Gen8 c-Class ProLiant blades, integrating with the blade enclosure’s networking architecture. This makes it suitable for environments standardized on HPE BladeSystem infrastructure.
The adapter provides dual 10Gb ports, each capable of 20,000 Mbps full duplex Ethernet transfer rate. Combined, these ports deliver up to 40 Gbps aggregate full duplex theoretical bandwidth per adapter. This throughput supports demanding workloads and enables consolidation of multiple traffic types onto a single FlexibleLOM adapter in blade servers.
Yes, the HPE FlexFabric 10Gb 2-port 554FLB Adapter supports Virtual Connect Flex-10. With compatible Virtual Connect Flex-10 interconnects, each 10Gb port on the adapter can be divided into four connections. This allows administrators to allocate bandwidth to multiple logical network functions from a single physical 10Gb port.
The adapter supports linking at 1000 Mbps or 10000 Mbps when it is not connected to a Flex-10 device. When it is connected to a 1Gb Ethernet interconnect, it operates at 1000 Mbps. These options allow deployment in mixed 1Gb and 10Gb environments and facilitate gradual upgrades to higher-speed networking.
Yes, the HPE FlexFabric 10Gb 2-port 554FLB Adapter requires a minimum of 2 GB of server memory. This requirement ensures that the blade server has sufficient resources to support the adapter’s networking functions. When planning configurations, IT teams should verify that each blade meets or exceeds this memory threshold.
You might also want to check out these products.

NVIDIA ConnectX-7 Ethernet Adapter MCX713106AS-VEAT

Cisco P-5GS6-GL

430-3793 - Dell Intel X520-DA2 2-Ports SFP+ Ethernet Network Adapter

11230BNHMW - Dell Centrino Wireless-N 1030 11230BNHMW IEEE 802.11b/g/n Mini PCI-Express WLAN Network Card for Inspiron N7110

3C589D - 3Com EtherLink III 1 x Port 10Mb/s 10Base-T PC Card Ethernet Network Adapter Card

555-BCKO - Dell X710 2-Ports 10Gb/s SFP+ + 2-Ports 1GbE Daughter Card

430-4398 - Dell Broadcom 57810S-K 2 x Ports 10GbE PCI Express 2.0 x8 Network Daughter Card

430-3638 - Dell Intel X520-DA2 2-Ports SFP+ 10GbE PCIe Network Adapter