IBM 00WT176 PCIe4 (x16) 2-Port EDR 100Gb IB ConnectX-5 CAPI Adapter LOW PROFILE

IBM PCIe4 x16 2-Port EDR 100Gb IB ConnectX-5 CAPI Capable Adapter

The IBM Part Number 00WT176 (Base P/N: 00WT174 / Mellanox Model: CX556N) refers to the high-performance PCIe4 x16 2-Port EDR 100Gb InfiniBand ConnectX-5 Adapter. Featuring IBM CCIN 2CF2, this adapter is engineered for High-Performance Computing (HPC), enterprise data centers, and large-scale cloud architectures requiring massive bandwidth, ultra-low latency, and advanced data processing capabilities.

It integrates Mellanox (NVIDIA) ConnectX-5 technology and features CAPI (Coherent Accelerator Processor Interface) capability, which allows the adapter to share a coherent memory space directly with the host IBM POWER processor, significantly bypassing operating system overhead.

Key Features & Capabilities

• Advanced HPC Offloads: Accelerates Message Passing Interface (MPI) protocols with advanced hardware-based offloads, including MPI Tag Matching and MPI AlltoAll operations.

• CAPI Capable Architecture: Supports the Coherent Accelerator Processor Interface, allowing the adapter to read/write directly to server system memory with minimal latency and reduced CPU utilization.

• Virtual Protocol Interconnect (VPI): Offers flexible infrastructure choices by allowing the ports to be configured dynamically as either InfiniBand or high-speed Ethernet (RoCE).

• Stateless Offloads: Reduces CPU overhead via advanced hardware engines, supporting TCP/UDP/IP stateless offloading, LSO, LRO, and checksum execution.

• Dynamic Routing & Resiliency: Features intelligent hardware-driven packet routing to avoid congestion in dense network fabrics, maximizing data throughput stability.

Technical Specifications