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PartsTable / NETWORK / 684211-B21
684211-B21 ✓ Verified by PartsTable
HP · NETWORK · 10GBE_NIC
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 10GB 530FLB adptboard,Flex-10,Ethernet,2port,Flexible LAN. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
NETWORK→ 10GBE_NIC→ 684211-B21
SPECIFICATIONS
Part Number684211-B21
ManufacturerHP
Capacity10GB
COMPONENT DIAGRAM
NIC CTRL PHY 0 PHY 1 ROM VRM SFP+ SFP+ LINK ACT PCIe x8 ~167 mm NETWORK ADAPTER | 2-PORT 10GbE | SFP+ | Full Height PCIe x8 | Link/Activity LEDs | PXE boot ROM TITLE NIC ADAPTER PN 684211-B21 MFR HP HP 10GB 530FLB adptboard,Flex-10,Etherne
KEY FEATURES
•
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
656590-B21Compatible
HP NIC 530FLB 10GbE 2-Port PCI-E-2.0x8 Flex-10 Ethernet BL-c FlexibleLOM (Broadcom BCM57810S)
compatible
657132-001Compatible
HP NIC 530FLB 10GbE 2-Port PCI-E-2.0x8 Flex-10 Ethernet BL-c FlexibleLOM (Broadcom BCM57810S)
compatible
656588-001Compatible
HP NIC 530FLB 10GbE 2-Port PCI-E-2.0x8 Flex-10 Ethernet BL-c FlexibleLOM (Broadcom BCM57810S)
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
656588-001SUBSTITUTE
HP NIC 530FLB 10GbE 2-Port PCI-E-2.0x8 Flex-10 Ethernet BL-c FlexibleLOM (Broadcom BCM57810S) FIO
HPE
656590-B21SUBSTITUTE
HP NIC 530FLB 10GbE 2-Port PCI-E-2.0x8 Flex-10 Ethernet BL-c FlexibleLOM (Broadcom BCM57810S) FIO
HPE
657132-001SUBSTITUTE
HP NIC 530FLB 10GbE 2-Port PCI-E-2.0x8 Flex-10 Ethernet BL-c FlexibleLOM (Broadcom BCM57810S) FIO
HPE
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FREQUENTLY ASKED QUESTIONS
What is 684211-B21?
684211-B21 is a HP 10GB 530FLB adptboard,Flex-10,Ethernet,2port,Flexible LAN manufactured by HP. It is classified as a NETWORK (10GBE_NIC).
What parts can replace 684211-B21?
There are 3 known substitutes for 684211-B21: 656590-B21, 657132-001, 656588-001. Substitute compatibility should be verified for your specific system.
Is 684211-B21 still available?
684211-B21 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026