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Q2P91A — Network Technical Data

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HPE · NIC ADAPTER
WHAT YOU NEED TO KNOW
RJ45 = copper (needs CAT6) | SFP+ = fiber (needs transceiver) FLR = FlexibleLOM (HPE integrated) — NOT standard PCIe
Bracket height MUST match chassis — Full Height (2U) vs Low Profile (1U)
PRODUCT OVERVIEW

HP NIC 530T 10GbE RJ-45 2-Port PCI-E-2.0x8 Ethernet Controller (Broadcom BCM57810S). Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
Q2P91A
SPECIFICATIONS
Part NumberQ2P91A
ManufacturerHPE
Interface10GbE
Capacity10GB
COMPONENT DIAGRAM
NIC CTRL PHY 0 PHY 1 ROM VRM 10GbE 10GbE LINK ACT PCIe x8 ~167 mm NETWORK ADAPTER | 2-PORT 10GbE | 10GbE | Full Height PCIe x8 | Link/Activity LEDs | PXE boot ROM TITLE NIC ADAPTER PN Q2P91A MFR HPE HP NIC 530T 10GbE RJ-45 2-Port PCI-E-2.0
KEY FEATURES
•
10GbE Interface
•
10GB Capacity
TYPICAL APPLICATIONS
  • Data center top-of-rack switching
  • High-speed server interconnects (10G/25G/40G/100G)
  • Storage network fabric (iSCSI, FCoE)
  • Campus and branch network infrastructure
  • Firewall and security appliance connectivity
  • WAN edge and SD-WAN deployments
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
656596-B21Compatible
HP NIC 530T 10GbE RJ-45 2-Port PCI-E-2.0x8 Ethernet Controller (Broadcom BCM57810S)
compatible
657128-001Compatible
HP NIC 530T 10GbE RJ-45 2-Port PCI-E-2.0x8 Ethernet Controller (Broadcom BCM57810S)
compatible
656594-001Compatible
HP NIC 530T 10GbE RJ-45 2-Port PCI-E-2.0x8 Ethernet Controller (Broadcom BCM57810S)
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
656594-001SUBSTITUTE
HP NIC 530T 10GbE RJ-45 2-Port PCI-E-2.0x8 Ethernet Controller (Broadcom BCM57810S) for StoreEasy
HPE
656596-B21SUBSTITUTE
HP NIC 530T 10GbE RJ-45 2-Port PCI-E-2.0x8 Ethernet Controller (Broadcom BCM57810S) for StoreEasy
HPE
657128-001SUBSTITUTE
HP NIC 530T 10GbE RJ-45 2-Port PCI-E-2.0x8 Ethernet Controller (Broadcom BCM57810S) for StoreEasy
HPE
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FREQUENTLY ASKED QUESTIONS
What is Q2P91A?
Q2P91A is a HP NIC 530T 10GbE RJ-45 2-Port PCI-E-2.0x8 Ethernet Controller (Broadcom BCM57810S) manufactured by HPE.
What parts can replace Q2P91A?
There are 3 known substitutes for Q2P91A: 656596-B21, 657128-001, 656594-001. Substitute compatibility should be verified for your specific system.
Is Q2P91A still available?
Q2P91A is currently Unknown.
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Last verified: September 2026