Alternative to PS-5281-3DFS: Better-Value Equivalents in Stock
Comparing the PS-5281-3DFS (PS-5281-3DFS - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex GX520 GX620 DT 745 755 / Dimension C521) 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 PS-5281-3DFS
| SKU | PS-5281-3DFS |
|---|---|
| Product | PS-5281-3DFS - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex GX520 GX620 DT 745 755 / Dimension C521 |
| Current price | $182.37 |
| Stock status | In Stock |
| Detail page | View PS-5281-3DFS › |
Alternatives to PS-5281-3DFS
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.
PS-5281-9DF-LF - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex 620 745 755
SKU: PS-5281-9DF-LF
Price: $189.47
PS-5281-9DF - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex 620 745 755
SKU: PS-5281-9DF
Price: $235.79
PS-5281-5DF-LF - Dell 280-Watts 100-120V / 200-240V ATX Power Supply for OptiPlex GX 320 520 620 740 745 755 / Dimension C521
SKU: PS-5281-5DF-LF
Price: $369.84
PS-5281-3DF - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex GX520 GX620 DT 745 755 / Dimension C521
SKU: PS-5281-3DF
Price: $429.83
PS-6281-DA - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex 620 745 755
SKU: PS-6281-DA
Price: $126.68
0L280P - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex GX320/GX330/GX520/GX620/GX280/740/745,Dimension C521
SKU: 0L280P
Price: $127.53
L280P - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex GX320/GX330/GX520/GX620/GX280/740/745,Dimension C521
SKU: L280P
Price: $127.53
0JK930 - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex GX620 740 745 755
SKU: 0JK930
Price: $143.39
D280ES-00 - Dell 280-Watts 100-240V Mini-ATX Power Supply for OptiPlex 980 XE
SKU: D280ES-00
Price: $143.39
JK930 - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex GX620 740 745 755
SKU: JK930
Price: $143.39
Dell HP-Q2828F3P LF 280-Watts 100-127V / 200-240V ATX Power Supply for OptiPlex GX 320 520 620 740 745 755 / Dimension C521
SKU: HP-Q2828F3P-LF
Price: $157.07
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.