Replacement for 656522-001: Drop-In Alternatives We Stock
Looking for a replacement for the 656522-001 (656522-001 - HP 400-Watts ATX Power Supply For Z1 G2 Workstation)? 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 656522-001
| SKU | 656522-001 |
|---|---|
| Product | 656522-001 - HP 400-Watts ATX Power Supply For Z1 G2 Workstation |
| Current price | $143.39 |
| Stock status | In Stock |
| Detail page | View 656522-001 › |
Drop-in replacements for 656522-001
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.
310424-001 - HP 450-Watts ATX Power Supply with Power Factor Correction Power Factor Correction for XW8000 WorkStation
SKU: 310424-001
Price: $155.79
437407-001 - HP 300-Watts ATX 24-Pin Power Supply with Power Factor Correction for XW4550 WorkStation
SKU: 437407-001
Price: $103.16
404471-001 - HP 300-Watts 24-Pin ATX Power Supply with Passive Power Factor Correction for DC5700 DC5750 CMT XW3400 WorkStation
SKU: 404471-001
Price: $110.53
335741-001 - HP 460-Watts ATX Power Supply Power Factor Correction for Workstation 6000
SKU: 335741-001
Price: $160.00
444411-001 - HP 800-Watts 24-Pin ATX Wide Ranging Power Supply with Active Power Factor Correction for XW8400 XW8600 WorkStation
SKU: 444411-001
Price: $194.74
508548-001 - HP 650-Watts 24-Pin ATX Power Supply with Power Factor Correction For Workstation Z600
SKU: 508548-001
Price: $205.26
372355-001 - HP 410-Watts ATX Active Power Factor Correction Power Supply For Workstation 4200
SKU: 372355-001
Price: $303.16
DPS-470AB-1A - HP 500-Watts 90-264V AC ATX Power Supply with Active Power Factor Correction for XW6200 WorkStation
SKU: DPS-470AB-1A
Price: $565.32
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.