Replacement for 656596-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 656596-B21 (656596-B21 - HP 530T 2-Port 10GB/s RJ-45 PCI-Express x8 Network Ethernet 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 656596-B21
| SKU | 656596-B21 |
|---|---|
| Product | 656596-B21 - HP 530T 2-Port 10GB/s RJ-45 PCI-Express x8 Network Ethernet Adapter |
| Current price | $257.89 |
| Stock status | In Stock |
| Detail page | View 656596-B21 › |
Drop-in replacements for 656596-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.
657128-001 - HP 530T 2-Port 10GB/s RJ-45 PCI-Express x8 Network Ethernet Adapter
SKU: 657128-001
Price: $50.53
HPE P10102-B21 2-Port 10Gb/s 10GBase-T RJ-45 Gigabit Ethernet PCI Express 3.0 Network Adapter for ProLiant Dl325 Gen10
SKU: P10102-B21
Price: $142.11
656594-001 - HP 530T 2-Port 10GB/s RJ-45 PCI-Express x8 Network Ethernet Adapter
SKU: 656594-001
Price: $187.37
614506-001 - HP Dual Port 10Gb Ethernet PCI-Express Network Adapter Card
SKU: 614506-001
Price: $187.37
HP 560FLR-SFP+ 560FLR-SFP+ Dual-Port 10Gb/s Ethernet (RJ-45) PCI Network Adapter
SKU: 560FLR-SFP
Price: $296.30
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
HPE 815669-001 2-Ports RJ-45 10Gb/s PCI Express 3.0 x8 535T Ethernet Network Adapter
SKU: 815669-001
Price: $300.00
HPE R8Q70A#ABA Aruba 6200M 48-Port PoE+ 10/100/1000Base-T Gigabit Ethernet RJ-45 4-Port 10GBase-X 10Gigabit Ethernet SFP+ Uplink Layer 3 Managed Stackable 1U Rack-mountable Network Switch
SKU: R8Q70A#ABA
Price: $4,713.68
HPE P08435-001 QL41132HLRJ 2-Port 10Gb/s RJ-45 PCI Express 3.0 x8 Network Adapter for ProLiant DL325 Gen10
SKU: P08435-001
Price: $271.58
811545-B21 - HP 4-Ports 366T Ethernet NIC - 4-1GB Ethernet Ports, PCI Express 2.1 X4
SKU: 811545-B21
Price: $517.47
453055-001 - HP NC382T PCI-Express x4 Dual Port 1000Base-T Multifunction Gigabit Ethernet Server Adapter (NIC)
SKU: 453055-001
Price: $155.79
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.