Replacement for DPS-400AB-12: Drop-In Alternatives We Stock
Looking for a replacement for the DPS-400AB-12 (DPS-400AB-12 - Delta 400-Watts Switching 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-12
| SKU | DPS-400AB-12 |
|---|---|
| Product | DPS-400AB-12 - Delta 400-Watts Switching Power Supply |
| Current price | $128.95 |
| Stock status | In Stock |
| Detail page | View DPS-400AB-12 › |
Drop-in replacements for DPS-400AB-12
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
DPS-250RBA - Delta 220-Watts ATX 12V Switching Power Supply with Active PFC for EVO D310/ D315/ D510, Vectra VL430
SKU: DPS-250RBA
Price: $143.39
DPS-240EB-A - Delta 240-Watts 120-240V AC Redundant Hot-Swappable 20-Pin Switching Power Supply with Active PFC for EVO D330
SKU: DPS-240EB-A
Price: $157.07
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
Delta DPS-350XB-3 A 350-Watts 100-127V / 200-240V ATX Power Supply for Inspiron 530 531 Vostro 200 400 Studio 540
SKU: DPS-350XB-3-A
Price: $133.58
Delta DPS-300AB-26 A 300-Watts 100-120V / 200-240V ATX Power Supply for Inspiron 530 531 / Vostro 200 400
SKU: DPS-300AB-26-A
Price: $152.76
6LL0479603GP - Sparkle Power 400-Watts 12V/EPS12V 1U ATX Switching Power Supply
SKU: 6LL0479603GP
Price: $294.22
9PA4004302 - Sparkle Power 400-Watts 12V/EPS12V 1U ATX Switching Power Supply
SKU: 9PA4004302
Price: $294.22
SPI4001UG-B204 - Sparkle Power 400-Watts 12V/EPS12V 1U ATX Switching Power Supply
SKU: SPI4001UG-B204
Price: $330.93
277919-001 - HP 220-Watts ATX 12V Switching Power Supply with Active Power Supply Correction for Presario 6000
SKU: 277919-001
Price: $96.84
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.