Detailed Specifications
HPE 766490-B21 FlexFabric 10Gb 2-Port 536FLB Adapter
Overview
The HPE 766490-B21 is a FlexibleLOM network adapter designed for HPE ProLiant server blades, providing two 10 Gb Ethernet (FlexFabric) ports in a compact form factor. It enables converged networking for both LAN and SAN (with FCoE/iSCSI offload), reducing cabling and infrastructure complexity. The adapter supports virtualization with multiple FlexNICs per port and offloads that minimize CPU utilization. It is well suited for data-center and enterprise virtualization environments.
Key Features
Two 10 Gb SFP+ ports (FlexFabric)
FlexibleLOM (536FLB) design saves PCIe slots
QLogic 57840S single-chip solution with integrated MAC/PHY
Supports Flex-10 / FlexNIC partitioning for virtualization
Offloads: FCoE, iSCSI, TCP/IP, TSO, RSS, jumbo frames
Technical Specifications
| Specification | Details |
|---|
| Brand | HPE |
| Part Number | 766490-B21 |
| Product Type | Network Adapter / Converged Adapter (CNA) |
| Model / Series | 536FLB |
| Host Interface | PCI Express 3.0 ×8 |
| Network Ports | 2 × 10 Gb SFP+ |
| Controller / Chipset | QLogic 57840S |
| Aggregate Bandwidth | Up to 40 Gb/s full duplex |
| Virtualization | SR-IOV, FlexNIC (up to 4 per port) |
| Offload Features | FCoE, iSCSI, TCP/UDP offload, TSO, RSS, Jumbo Frames |
| Standards | IEEE 802.1Q, 802.3, 802.3ad, 802.3ae, 802.1ab, 802.1Qau, 802.3ap |
| Power Consumption | ~12 W typical |
| Operating Temperature | 0 °C to 55 °C |
| Compatible Servers | HPE ProLiant BL460c Gen9 and other blade servers |
