HPE 877688-001

InfiniBand EDR 100 Gb/s 1-Port QSFP28Network Adapter

The HPE 877688-001 (also associated with SKU/CX555A/878578-001) is a high-performance InfiniBand EDR (100 Gb/s) single-portQSFP28 network adapter optimized for HPC, storage fabrics, and enterprise data centers. Based on Mellanox ConnectX-5 technology and featuring a PCIe 3.0 ×16 host interface, it delivers ultra-low latency and high-throughput connectivity. Compatible with both InfiniBand and RoCE-based Ethernet fabrics, this compact "stand-up" form factor adapter integrates seamlessly into dense server environments, making it ideal for accelerating AI/ML workloads, SAN interconnects, and scalable cluster deployments

Features

This adapter supports both InfiniBand EDR and 100 Gb Ethernet protocols via a single QSFP28 port. The Mellanox ConnectX-5 chipset enables advanced offload features including RDMA, RoCEv2, GPUDirect, and MPI tag-matching, significantly reducing CPU overhead and improving data transfer efficiency Designed for PCIe 3.0 ×16 slots, its low-profile "stand-up" design fits compact server chassis while maintaining optimal thermal performance. It's compatible with HPEProLiant, Apollo, and similar systems certified for high-speed fabrics.

Advanced Options

Engineered to deliver enterprise-grade reliability, the HPE 877688-001 adapter sustains consistent 100 Gb/s performance with sub-microsecond latency×critical for HPC, storage, and mission-critical data center tasks

Product Key Features

• 1 × QSFP28 port supporting 100 Gb/s InfiniBand EDR and 100 GbE
  

• Mellanox ConnectX-5 chipset with RDMA, RoCEv2, and GPUDirect
  

• PCI Express 3.0 ×16 host interface
  

• Ultra-low latency networking for high-performance computing
  

• Compact stand-up, low-profile form factor
  

• Compatible with InfiniBand and 100 Gb Ethernet fabrics

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Reliability & Performance

. Its hardware-assisted RDMA and GPUDirect features streamline data paths and reduce CPU load, enhancing overall system efficiency. Despite its high performance, the adapter consumes modest power (typically ≤ 15 W), depending on optical or DAC usage, and is designed to operate reliably under sustained loads within standard data center temperature ranges (0 °C to 55 °C)

Key Features :

• • Single QSFP28 port for 100 Gb/s InfiniBand EDR or Ethernet

  • ConnectX-5 hardware with RDMA, GPUDirect, and MPI offloads

  • PCIe 3.0 ×16 host interface

  • Stand-up, low-profile card design

  • Ultra-low latency networking

  • Support for both InfiniBand and 100 Gb Ethernet fabrics

Specification	Details
Model Number	877688-001 (PCA IB EDR / CX555A / SP 878578-001)
Product Type	InfiniBand EDR / 100 Gb Ethernet Single-Port Network Adapter
Port Configuration	1 × QSFP28
Supported Protocols	InfiniBand EDR (IBTA 1.3) & 100 Gb Ethernet (RoCEv2)
Chipset	Mellanox ConnectX-5
Bus Interface	PCI Express 3.0 ×16
Offload Features	RDMA, RoCEv2, GPUDirect, MPI tag-matching
Latency	Sub-microsecond
Power Consumption	Typical ≤15 W
Form Factor	Stand-up low-profile PCIe card
Supported Hosts	HPEProLiant, Apollo, Synergy, generic PCIe-compatible
Operating Temperature	0 °C to 55 °C
Compliance	RoHS, WEEE
Dimensions (approx.)	17.8 × 21.6 × 5.1 cm (~8 × 6 × 2 in)
Weight	≈0.45 kg (≈1 lb)
Warranty	90-day (typical for refurbished units)