Replacement for 406771-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 406771-B21 (HP 406771-B21 NC326M 2 x Ports 1Gb/s PCI-Express Mezzanine Gigabit Ethernet Network Interface Card)? 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 406771-B21
| SKU | 406771-B21 |
|---|---|
| Product | HP 406771-B21 NC326M 2 x Ports 1Gb/s PCI-Express Mezzanine Gigabit Ethernet Network Interface Card |
| Current price | $71.58 |
| Stock status | In Stock |
| Detail page | View 406771-B21 › |
Drop-in replacements for 406771-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.
HP 404984-001 2 x Ports 1Gb/s 1000Base-T Gigabit Ethernet PCI Express x4 Mezzanine Server Network Adapter Card
SKU: 404984-001
Price: $71.58
HP 419330-001 NC326M 2 x Ports 1Gb/s PCI-Express Mezzanine Gigabit Ethernet Network Interface Card
SKU: 419330-001
Price: $71.58
HP 467799-B21 NC532M Flex-10 2 x Ports 10GbE PCI-Express Mezzanine Gigabit Ethernet Server Adapter for HP ProLiant c-Class BladeSystem
SKU: 467799-B21
Price: $170.53
HP 539933-001 NC542M Flex-10 2 x Ports 10GbE PCI-Express Mezzanine Gigabit Ethernet Server Adapter for ProLiant c-Class BladeSystem
SKU: 539933-001
Price: $173.68
HP 440939-001 NC512M 2 x Ports 10GbE PCI-Express Mezzanine Gigabit Ethernet Multifunction Server Adapter for HP ProLiant c-Class BladeSystem
SKU: 440939-001
Price: $236.84
HP 440910-B21 NC512M 2 x Ports 10GbE PCI-Express Mezzanine Gigabit Ethernet Multifunction Server Adapter for HP ProLiant c-Class BladeSystem
SKU: 440910-B21
Price: $236.84
HP 448515-001 NC512M 2 x Ports 10GbE PCI-Express Mezzanine Gigabit Ethernet Multifunction Server Adapter for HP ProLiant c-Class BladeSystem
SKU: 448515-001
Price: $236.84
HP BM136A G8000R RackSwitch 44 x Ports Gigabit Ethernet 4 x SFP+ Ports Back-to-Front Airflow Gigabit Ethernet Network Switch
SKU: BM136A
Price: $313.68
HPE R8N87A#ABA Aruba 6000 24G-Class4-PoE-4SFP 24-Ports 10/100/1000Base-T PoE 4-Ports SFP 1-Ports USB-C Console 1-Ports USB Type-A Host Layer 2 Managed 1U Rack-mountable Gigabit Ethernet Network Switch
SKU: R8N87A#ABA
Price: $1,109.16
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
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.