HPECX455A

840QSFP28 1-Port 100 GbE Ethernet/InfiniBand Network Adapter

The HPECX455A×also known as part number 825110-B21 or P02012-B21×is a premium 100 Gigabit Ethernet or InfiniBand Enhanced Data Rate (HDR100) adapter featuring a single QSFP28 port. Designed for HPEProLiant (Gen9/Gen10), Apollo, and XL platforms, this adapter delivers ultra-low latency and high reliability for cluster computing, storage fabrics, and network-intensive applications. Supporting both 100 Gb Ethernet and HDR100 InfiniBand transports, it enables flexible high-performance networking in demanding enterprise and HPC environments.

Features

Using a PCIe 3.0 ×16 host interface, the CX455A delivers full line-rate 100 Gb/s throughput via a QSFP28 port compatible with passive direct-attach copper (DAC) or active optical cable (AOC). It supports both standard Ethernet and InfiniBand protocols, allowing deployment in fabric clusters or high-throughput server-to-switch topologies. The card includes advanced features such as TCP/IP offload, VLAN, network fault tolerance, and PXE boot support, optimizing server performance and configuration flexibility. Compatible across HPEProLiant DL360/380/DL560/DL580 Gen9/10, Apollo 6500, SX40, and other HPC nodes, the adapter is ideal for demanding compute or storage traffic.

Advanced Options

Engineered for ultra-low latency environments, the CX455A ensures consistent 100 Gbps throughput with minimal host CPU involvement thanks to integrated offload functionality. Reliability features such as VLAN support and network fault tolerance (NFT) help maintain uninterrupted data flow.

Product Key Features

• Single QSFP28 port delivering 100 GbE Ethernet or HDR100 InfiniBand
  

• PCIe 3.0 ×16 interface with full bandwidth support
  

• Compatible with DAC and AOC QSFP28 cables
  

• Supports offload features: TCP/IP, VLAN, NFT, SR-IOV support
  

• PXE boot capability and link activity LED status
  

• Certified for use with HPEProLiant, Apollo, and XL platform servers

---

Reliability & Performance

The rugged QSFP28-based design supports both Ethernet and InfiniBand protocols, offering flexible deployment in HPC or enterprise scenarios. OEM testing ensures compatibility and long-term stability when used with HPEserver platforms. Firmware updates are available via HPEsupport for proper integration.

Key Features :

• 1 × QSFP28 port supporting 100 GbE or HDR100 InfiniBand

• PCIe 3.0 ×16 host interface

• Ethernet and InfiniBand protocol dual compatibility

• TCP/IP offload, VLAN support, NFT, SR-IOV capability

• PXE boot support and diagnostic LEDs

• Compatible with HPEProLiant Gen9/Gen10, Apollo, XL series servers

Specification	Details
Model Number	CX455A (also 825110-B21 / P02012-B21)
Product Type	1-Port 100 GbE / HDR100 InfiniBand Network Adapter
Host Interface	PCI Express 3.0 ×16
Port	1 × QSFP28
Supported Speeds	100 Gb/s Ethernet & HDR100 InfiniBand
Connector & Cabling	QSFP28; compatible with DAC / AOC
Offload Features	TCP/IP offloading, SR-IOV, VLAN, Network Fault Tolerance (NFT)
Diagnostics / Boot	PXE boot support; link/activity LED
Server Compatibility	HPEProLiant DL/ML/XL/DL Gen9 & Gen10, Apollo 6500, SX40
Power Consumption	~25 W typical
Operating Temp / Humidity	Standard server operating range
Condition Options	New or Refurbished
Warranty	90-Day (refurbished); 3-Year Replacement (new)