374921-001 is an HP replacement assembly for the NC571C dual-port 4x InfiniBand fabric adapter, providing two 4x InfiniBand ports through a PCI Express interface. HP part references identify 374921-001 as the spare/assembly associated with the 376160-B21 NC571C adapter.
- Part Number: 374921-001
- Manufacturer: HP / Compaq
- Product: NC571C Dual-Port 4x InfiniBand Fabric Adapter
- Ports: 2 × 4x InfiniBand
- Interface: PCI Express
- Bus Width: PCIe x8
- Network Technology: 4x InfiniBand
- Application: High-performance computing, server clustering, low-latency fabric networking
- Compatible Systems: Selected HP ProLiant servers equipped with compatible PCI Express slots
- Related Option: 376160-B21 — HP NC571C Dual-Port PCI-E 4x Fabric Adapter
- Related Spare: 374931-001 — NC571C PCIe dual-port 4x fabric adapter spare
- Compatibility Note: 374921-001 is an assembly/spare designation for the NC571C rather than a conventional Ethernet NIC; it is intended for InfiniBand fabric connectivity.