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- Specifications
P21112-B21 is the Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 adapter for HPE, a stand-up PCIe card. HPE lists P22201-001 as its spare part number.
HPE lists the card on the Intel Ethernet Controller E810-CAM2 with a PCIe 4.0 x16 connection. Power draw is typically 16.9 W and at most 19.2 W. HPE caps total throughput at 100Gb per adapter across both ports. It supports UEFI and legacy BIOS PXE boot and UEFI iSCSI boot, with iSCSI acceleration only through TCP acceleration.
HPE lists VXLAN, GENEVE and NVGRE tunnel offload, RDMA over iWARP and RoCEv2, SR-IOV with 256 virtual functions per port and 2k in total, DPDK, receive side scaling, and VMware NetQueue with Microsoft VMQ. HPE gives the card a hardware root of trust, authenticated updates, secure boot and sanitization, and lists SPDM support as no. Intel adapters allow different port speeds on the two ports of one card.
The kit holds the adapter with a full-height bracket fitted, a quick install card and a low-profile bracket. The OCP 3.0 version of this card is P22767-B21, which HPE rates at 15.9 W typical, and P41611-B21 is the E810-2CQDA2 variant. HPE recommends identical adapters on both ends of an RoCE link. See more HPE interface cards and transceivers.
| Option part number | P21112-B21 |
| Spare part number | P22201-001 |
| Card type | stand-up PCIe |
| Ports | 2 x QSFP28, 100Gb |
| Controller chip | Intel Ethernet Controller E810-CAM2 |
| PCIe | 4.0 x16 |
| Power | 16.9 W typical, 19.2 W maximum |
| Total throughput | 100Gb per adapter |
| RDMA | iWARP and RoCEv2 |
| SR-IOV | 256 VFs per port, 2k total |
| OCP 3.0 version | P22767-B21 |
| Kit contents | adapter with full-height bracket, quick install card, low-profile bracket |