Replacement for 647590-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 647590-B21 (647590-B21 - HP FlexFabric 554M Dual Port 10Gb/s PCI Express 2.0 x8 Mezzanine Network Adapter)? 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 647590-B21
| SKU | 647590-B21 |
|---|---|
| Product | 647590-B21 - HP FlexFabric 554M Dual Port 10Gb/s PCI Express 2.0 x8 Mezzanine Network Adapter |
| Current price | $187.37 |
| Stock status | In Stock |
| Detail page | View 647590-B21 › |
Drop-in replacements for 647590-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.
647588-001 - HP FlexFabric 10GB 554M Adapter - Network Adapter - 2-Ports
SKU: 647588-001
Price: $205.26
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
821547-B21 - HP FlexFabric 10GB 2-Port 536flb Adapter PCI-Express V3.0 (gen 3) X8 Optical Fibre
SKU: 821547-B21
Price: $513.54
AT094A - HP 8GB Dual Port PCI-Express Fibre Channel and 1/10GB Dual Port Ethernet Adapter
SKU: AT094A
Price: $145.26
613431-B21 - HP NC553M PCI-Express Dual Port FlexFabric 10GBe Mezzanine Gigabit Ethernet Server Adapter for ProLiant c-Class BladeSystem
SKU: 613431-B21
Price: $89.47
630FLB - HP FlexFabric 630FLB Dual Port 20Gb/s PCI Express 2.0 x8 Network Adapter
SKU: 630FLB
Price: $155.79
650FLB - HP FlexFabric 650FLB Dual Port 20Gb/s PCI Express 3.0 x8 Network Adapter
SKU: 650FLB
Price: $157.07
HPE 768080-001 HP 768080-001 FlexFabric 2 x Ports 10Gb/s 536FLB PCI-Express V3.0 Network Adapter
SKU: 768080-001
Price: $145.26
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.