Replacement for 751743-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 751743-B21 (751743-B21 - HP ProLiant SL2100 Scalable Special System)? 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 751743-B21
| SKU | 751743-B21 |
|---|---|
| Product | 751743-B21 - HP ProLiant SL2100 Scalable Special System |
| Stock status | In Stock |
| Detail page | View 751743-B21 › |
Drop-in replacements for 751743-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.
480572-005 - HP ProLiant DL120 G5 2GB RAM 2 x 160GB SATA Hard Drive Special Rack Server System
SKU: 480572-005
Price: $1,128.42
382617-001 - HP 3.6GHz Intel Xeon CPU Processor for ProLiant DL380 Cluster Special Server
SKU: 382617-001
Price: $147.37
164989-001 - HP / Compaq PS/2 Rackmount Keyboard w/Integrated Center Trackball for ProLiant ML370 Special Server
SKU: 164989-001
Price: $232.82
364839-001 - HP ProLiant DL380 G3 Intel Xeon 3.2GHz CPU 1GB Memory Rack Special Server
SKU: 364839-001
Price: $366.32
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.