Alternative to KW255: Better-Value Equivalents in Stock
Comparing the KW255 (KW255 - Dell 420-Watts Power Supply for EMC AX4-5DAE) against alternatives? Pro Disk Network stocks 12 similar Dell parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the KW255
| SKU | KW255 |
|---|---|
| Product | KW255 - Dell 420-Watts Power Supply for EMC AX4-5DAE |
| Current price | $155.79 |
| Stock status | In Stock |
| Detail page | View KW255 › |
Alternatives to KW255
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.
856-851288-001 - Dell 420-Watts Ac Dc Power Supply for EMC Clariion Ax45
SKU: 856-851288-001
Price: $155.79
TH344 - Dell 420-Watts 100-120V/200-240V Non-Redundant ATX Power Supply for PowerEdge 800/830/840
SKU: TH344
Price: $73.68
WH113 - Dell 420-Watts 100-120V / 200-240V ATX Power Supply for PowerEdge 800 830 840
SKU: WH113
Price: $96.84
NPS-375AB - Dell 375-Watts 100-120V 200-240V ATX Power Supply for Dimension 9100 9150 9200 Precision 380 390 XPS 400 410 420
SKU: NPS-375AB
Price: $109.05
AC255AS-00 - Dell 255-Watts 100-240V Power Supply for OptiPlex 3020 9020 7020 / Precision 420 620
SKU: AC255AS-00
Price: $110.53
GD278 - Dell 420-Watts 100-120V / 200-240V Non-Redundant Power Supply for PowerEdge 800 840
SKU: GD278
Price: $110.53
T9449 - Dell 420-Watts ATX Non-Redundant Power Supply for PowerEdge 800 830 840
SKU: T9449
Price: $131.58
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.