Replacement for A4974A: Drop-In Alternatives We Stock
Looking for a replacement for the A4974A (A4974A - HP PCI Ultra SCSI Single Ended 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 A4974A
| SKU | A4974A |
|---|---|
| Product | A4974A - HP PCI Ultra SCSI Single Ended Adapter |
| Current price | $334.74 |
| Stock status | In Stock |
| Detail page | View A4974A › |
Drop-in replacements for A4974A
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.
28655-60001 - HP Single-Ended SCSI-2 Centronics Host Adapter Board for 9000 800/G40 9000 E35 Server
SKU: 28655-60001
Price: $73.68
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
C2490D - HP 2.1GB 5400RPM Ultra Wide SCSI Single-Ended Narrow 50-Pin 3.5-inch Hard Drive
SKU: C2490D
Price: $90.21
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
C2490-39005 - HP 2.1GB 5400RPM Ultra Wide SCSI Single-Ended Narrow 50-Pin 3.5-inch Hard Drive
SKU: C2490-39005
Price: $90.21
C2490-30002 - HP 2.1GB 5400RPM Ultra Wide SCSI Single-Ended Narrow 50-Pin 3.5-inch Hard Drive
SKU: C2490-30002
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
C2490AR - HP 2.1GB 5400RPM Ultra Wide SCSI Single-Ended Narrow 50-Pin 3.5-inch Hard Drive
SKU: C2490AR
Price: $110.39
C2490WDR - HP 2.1GB 5400RPM Ultra Wide SCSI Single-Ended Narrow 50-Pin 3.5-inch Hard Drive
SKU: C2490WDR
Price: $121.22
C2490W - HP 2.1GB 5400RPM Ultra Wide SCSI Single-Ended Narrow 50-Pin 3.5-inch Hard Drive
SKU: C2490W
Price: $122.80
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.