Replacement for D4963A: Drop-In Alternatives We Stock
Looking for a replacement for the D4963A (D4963A - HP 4.2GB 5400RPM SCSI Wide Ultra Low Profile 50-Pin 3.5-inch Hard Drive)? 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 D4963A
| SKU | D4963A |
|---|---|
| Product | D4963A - HP 4.2GB 5400RPM SCSI Wide Ultra Low Profile 50-Pin 3.5-inch Hard Drive |
| Current price | $194.37 |
| Stock status | In Stock |
| Detail page | View D4963A › |
Drop-in replacements for D4963A
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.
D4963AU - HP 4.2GB 5400RPM SCSI Wide Ultra Low Profile 50-Pin 3.5-inch Hard Drive
SKU: D4963AU
Price: $181.21
D4963AR - HP 4.2GB 5400RPM SCSI Wide Ultra Low Profile 50-Pin 3.5-inch Hard Drive
SKU: D4963AR
Price: $704.64
D4963-60001 - HP 4.2GB 5400RPM SCSI Wide Ultra Low Profile 50-Pin 3.5-inch Hard Drive
SKU: D4963-60001
Price: $727.38
0950-3478 - HP 18GB 10000RPM Ultra-2 Wide SCSI Low Voltage Differential (LVD) 80-Pin 3.5-inch Hard Drive
SKU: 0950-3478
Price: $139.21
0950-4287 - HP 18GB 10000RPM Ultra-2 Wide SCSI Low Voltage Differential (LVD) 80-Pin 3.5-inch Hard Drive
SKU: 0950-4287
Price: $316.84
0950-3336E0 - HP 18GB 10000RPM Ultra-2 Wide SCSI Low Voltage Differential (LVD) 80-Pin 3.5-inch Hard Drive
SKU: 0950-3336E0
Price: $463.36
0950-3712 - HP 18GB 10000RPM Ultra-2 Wide SCSI Low Voltage Differential (LVD) 80-Pin 3.5-inch Hard Drive
SKU: 0950-3712
Price: $468.00
0950-3967 - HP 18GB 10000RPM Ultra-2 Wide SCSI Low Voltage Differential (LVD) 80-Pin 3.5-inch Hard Drive
SKU: 0950-3967
Price: $484.38
0950-3336 - HP 18GB 10000RPM Ultra-2 Wide SCSI Low Voltage Differential (LVD) 80-Pin 3.5-inch Hard Drive
SKU: 0950-3336
Price: $714.82
C2490-69375 - HP 2.1GB 5400RPM Ultra Wide SCSI Single-Ended Narrow 50-Pin 3.5-inch Hard Drive
SKU: C2490-69375
Price: $82.42
C2490-69540 - HP 2.1GB 5400RPM Ultra Wide SCSI Single-Ended Narrow 50-Pin 3.5-inch Hard Drive
SKU: C2490-69540
Price: $90.21
C2490-60002 - HP 2.1GB 5400RPM Ultra Wide SCSI Single-Ended Narrow 50-Pin 3.5-inch Hard Drive
SKU: C2490-60002
Price: $90.21
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.