Replacement for 128399-001: Drop-In Alternatives We Stock
Looking for a replacement for the 128399-001 (128399-001 - Compaq 375-Watts Power Supply for Workstation AP550)? Pro Disk Network ships 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 128399-001
| SKU | 128399-001 |
|---|---|
| Product | 128399-001 - Compaq 375-Watts Power Supply for Workstation AP550 |
| Current price | $165.79 |
| Stock status | In Stock |
| Detail page | View 128399-001 › |
Drop-in replacements for 128399-001
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.
189642-001 - Compaq 500-Watts 100-240V AC ATX Power Factor Correction Power Supply for EVO W6000 W8000 Workstation
SKU: 189642-001
Price: $229.47
PS-7501-1 - Compaq 500-Watts 100-240V AC ATX Power Factor Correction Power Supply for EVO W6000 W8000 WorkStation
SKU: PS-7501-1
Price: $296.30
119826-B31 - Compaq 375-Watts Redundant Power Supply for StorageWorks 4200 4300 Enclosure
SKU: 119826-B31
Price: $481.18
327651-001 - Compaq 200-Watts Power Supply for AP400 Professional Workstation
SKU: 327651-001
Price: $105.26
308439-001 - Compaq 185-Watts ATX Power Supply for EVO D530 D325 DC5000 SFF WorkStation
SKU: 308439-001
Price: $182.37
S26113E470V20 - Fujitsu 400 Watts Workstation Power Supply for Celsius R610 WorkStation
SKU: S26113E470V20
Price: $602.78
310424-001 - HP 450-Watts ATX Power Supply with Power Factor Correction Power Factor Correction for XW8000 WorkStation
SKU: 310424-001
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.