Replacement for 779798-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 779798-B21 (779798-B21 - HP Ethernet 10GB 2-Port 546FLR-SFP+ Adapter - PCI Express 3 X8 - 2-Ports - Optical Fibre)? Pro Disk Network ships HP drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the 779798-B21
| SKU | 779798-B21 |
|---|---|
| Product | 779798-B21 - HP Ethernet 10GB 2-Port 546FLR-SFP+ Adapter - PCI Express 3 X8 - 2-Ports - Optical Fibre |
| Current price | $636.61 |
| Stock status | In Stock |
| Detail page | View 779798-B21 › |
Drop-in replacements for 779798-B21
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
NC552SFP - HP 10GB 2-Port Ethernet Server Adapter Network Adapter PCI-Express 2.0 X8 10 Gigabit Ethernet 2 Ports
SKU: NC552SFP
Price: $61.05
614202-B21 - HP Nc552SFP 10GB 2-Port Ethernet Server Adapter Network Adapter PCI-Express 2.0 X8 10 Gigabit Ethernet 2 Ports
SKU: 614202-B21
Price: $280.87
NC523SFP - HP 10GB 2-Port Server Adapter Network Adapter PCI-Express 2.0 X8 10 Gigabit Ethernet 2 Ports
SKU: NC523SFP
Price: $147.37
580151-001 - HP Nc551m Dual Port FlexFabric 10GB Converged Network Adapter Network Adapter PCI-Express 2.0 X8 2 Ports
SKU: 580151-001
Price: $103.62
Q2P92A - HP Ethernet 10GB Dual-Port 530SFP+ Adapter Network Adapter PCI Express
SKU: Q2P92A
Price: $47.37
AT094A - HP 8GB Dual Port PCI-Express Fibre Channel and 1/10GB Dual Port Ethernet Adapter
SKU: AT094A
Price: $145.26
779800-B21 - HP Ethernet 10GB 2-Port 546flr-SFP+ Adapter PCI-Express 3.0 X8 2-Port (s) Optical Fibre
SKU: 779800-B21
Price: $650.61
HPE R8N89A#ABA Aruba 6000 12G-Class4-PoE-2G/2SFP 12-Ports 10/100/1000Base-T PoE+ 2-Ports SFP 2-Ports 1GbE Base-T 1-Ports USB-C Console 1-Port USB Type-A Layer 2 1U Rack Mount Gigabit Ethernet Manageab
SKU: R8N89A#ABA
Price: $1,221.05
HPE 725052-B21 2-Ports 10Gb/s RJ-45 Gigabit Ethernet PCI Express 2.1 x8 Network Adapter Card
SKU: 725052-B21
Price: $82.11
HP AX705A 2 x Ports 10Gb/s Gigabit Ethernet PCI Express Network Adapter Card for Left Hand P4000 SAN
SKU: AX705A
Price: $86.32
HP 717708-002 561T 2 x Ports 10Gb/s PCI Express 2.1 x8 Ethernet Network Adapter Card
SKU: 717708-002
Price: $191.58
HPE 867707-B21 2-Ports 10Gb/s 10GBase-T PCI-Express 3.0 X8 521T Ethernet Network Adapter
SKU: 867707-B21
Price: $275.79
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.