Replacement for 648312-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 648312-B21 (648312-B21 - HP InfiniBand BLC 4X FDR Managed Switch)? 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 648312-B21
| SKU | 648312-B21 |
|---|---|
| Product | 648312-B21 - HP InfiniBand BLC 4X FDR Managed Switch |
| Current price | $515.79 |
| Stock status | In Stock |
| Detail page | View 648312-B21 › |
Drop-in replacements for 648312-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.
670759-B23 - HP InfiniBand 5ft 4X FDR QSFP Copper Cable InfiniBand Cable
SKU: 670759-B23
Price: $184.21
670759-B27 - HP InfiniBand 13ft 4X FDR QSFP Copper Cable InfiniBand Cable
SKU: 670759-B27
Price: $366.32
545775-002 - HP BLC BL8155-14 C-Class ServerNET Infiniband Module Switch
SKU: 545775-002
Price: $652.28
670760-B21 - HP 10ft Infiniband 4X FDR QSFP Optical Cable for Mellanox SX1018HP Ethernet Switch
SKU: 670760-B21
Price: $384.72
674278-B21 - HP Mellanox InfiniBand (IB) QDR FDR 324-Port Switch Chassis
SKU: 674278-B21
Price: $1,697.68
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.