Replacement for DPS-400AB-B: Drop-In Alternatives We Stock
Looking for a replacement for the DPS-400AB-B (Delta DPS-400AB B 400-Watts Power Supply)? 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 DPS-400AB-B
| SKU | DPS-400AB-B |
|---|---|
| Product | Delta DPS-400AB B 400-Watts Power Supply |
| Current price | $259.50 |
| Stock status | In Stock |
| Detail page | View DPS-400AB-B › |
Drop-in replacements for DPS-400AB-B
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.
DPS-460FB - Delta 460-Watts 12V Switching Power Supply for Delta ProLiant DL180/ DL360 DL380 Gen6 Series
SKU: DPS-460FB
Price: $157.07
Delta DPS-700AB-1 A 700-Watts Power Supply For Delta Workstation Z440
SKU: DPS-700AB-1-A
Price: $357.09
DPS-350TB-E - Delta 350-Watts Power Supply for ProLiant ML310 G3 DPS-350TB E
SKU: DPS-350TB-E
Price: $282.20
DPS-400GB - Delta 400-Watts AC 100-240V 5.5A Redundant Power Supply with Power Factor Correction (PFC)
SKU: DPS-400GB
Price: $273.91
DPS-3381-1C1 - Delta 400-Watts 100-240V Redundant Power Supply For ProLiant DL380 G3
SKU: DPS-3381-1C1
Price: $102.32
Delta DPS-400YB A 400-Watts 100-240V ATX Power Supply for PowerEdge R300
SKU: DPS-400YB-A
Price: $125.47
DPS-280CB - Delta 400-Watts Hot-Pluggable Power Supply for Netserver LC2000
SKU: DPS-280CB
Price: $128.95
DPS-400AB-6 - Delta 400-Watts 100-240V Redundant Power Supply for PowerEdge T310 / Precision T5500
SKU: DPS-400AB-6
Price: $131.58
Delta DPS-350VB-1 A 350-Watts 100-127V 200-240V ATX Power Supply for Inspiron 530 531 / Vostro 200 400 / Studio 540
SKU: DPS-350VB-1-A
Price: $132.79
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.