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728991-B21 — HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020) FIO

HPE · SFP TRANSCEIVER
PRODUCT OVERVIEW

728991-B21: HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020) FIO.

HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020) FIO. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

SPECIFICATIONS
Part Number728991-B21
ManufacturerHPE
Interface10GbE
Capacity10GB
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COMPONENT DIAGRAM
BAIL LATCH 10G SFP+ 850nm · SR (MMF, 300m) DOM: Digital Optical Monitoring TX RX LC DUPLEX 20-PIN EDGE CONNECTOR ~56.5 mm ~13.4mm SFP+ TRANSCEIVER | 10G | 850nm | SR (MMF, 300m) Hot-swappable | LC duplex fiber | DDM/DOM supported TITLE SFP+ XCVR PN 728991-B21 MFR HPE HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.
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
SUBSTITUTES & CROSS-REFERENCES 4
728992-B21CompatiblePARTNER
HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020)
compatible
733386-001CompatiblePARTNER
HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020)
compatible
728531-001CompatiblePARTNER
HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020)
compatible
728993-B21CompatiblePARTNER
HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020) FIO
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 4
728531-001SUBSTITUTE
HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020)
HPE
728992-B21SUBSTITUTE
HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020)
HPE
728993-B21SUBSTITUTE
HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020)
HPE
733386-001SUBSTITUTE
HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020)
HPE
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FREQUENTLY ASKED QUESTIONS
What is 728991-B21?
728991-B21 is a HP NIC 571FLR-SFP+ 10GbE 2-Port PCI-E-2.0x8 Ethernet Controller (Solarflare SFC9020) FIO manufactured by HPE.
What parts can replace 728991-B21?
There are 4 known substitutes for 728991-B21: 728992-B21, 733386-001, 728531-001 and 1 more. Substitute compatibility should be verified for your specific system.
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PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.