HPE 872726-B21 — InfiniBand EDR/Ethernet 100Gb/s 2-Port 841QSFP28 VPI Adapter
Technical Identity
HPE 841QSFP28 dual-port QSFP28 VPI adapter (HPE PN 872726-B21): supports InfiniBand EDR (100Gb/s per port) or 100GbE Ethernet. Based on Mellanox ConnectX-4 VPI silicon. HPE ProLiant Gen9/Gen10 validated. RoCE v2, IB verbs, RDMA, NVMe-oF offloads. Condition: Refurbished Grade A.
Specifications

Brand: HPE
HPE PN: 872726-B21
HPE model: 841QSFP28 (dual-port)
Ports: 2× QSFP28 (100Gb/s each)
Protocol: VPI — InfiniBand EDR (100Gb/s) or 100GbE Ethernet
Qualification: HPE ProLiant Gen9/Gen10
Offloads: RoCE v2, IB verbs, RDMA, NVMe-oF, SR-IOV
Condition: Refurbished Grade A

What This Is NOT

NOT HDR. EDR maximum (100Gb/s). For HDR (200Gb/s), see ConnectX-6 VPI P24248-001.
NOT Ethernet-only. VPI — supports both InfiniBand EDR and 100GbE Ethernet per port.
NOT a standard NVIDIA retail card. HPE OEM — verify outside ProLiant before deploying.
NOT supplied with cables or QSFP28 transceivers.

Frequently Asked Questions (FAQ)
Q. What is the HPE 872726-B21?
HPE 841QSFP28 (dual-port): InfiniBand EDR 100Gb/s or 100GbE Ethernet via VPI. ProLiant Gen9/Gen10 qualified.
Q. What is the difference between 841QSFP28 (872726-B21) and 842QSFP28 (874251-001)?
841QSFP28 is dual-port VPI (IB + Ethernet). 842QSFP28 is single-port Ethernet-only.
Q. Is 872726-B21 HDR capable?
No — EDR maximum (100Gb/s). For HDR (200Gb/s), see ConnectX-6 VPI series (P24248-001 or MCX653105A-EFAT).
Q. What condition does T.E.S IT-SOLUTIONS supply?
Refurbished Grade A — EEPROM-verified, link-tested, cosmetically inspected, EU stock.
Why buy from T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS is a Europe-based data-center networking specialist. Every unit is MPN-identified, EEPROM-verified, and cosmetically inspected before leaving our EU warehouse. Multi-currency invoicing, worldwide express shipping, and free pre-sale technical consultation included.