Alternative to MM720: Better-Value Equivalents in Stock
Comparing the MM720 (MM720 - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex GX745 GX755) 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 MM720
| SKU | MM720 |
|---|---|
| Product | MM720 - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex GX745 GX755 |
| Current price | $189.47 |
| Stock status | In Stock |
| Detail page | View MM720 › |
Alternatives to MM720
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-6281-DA - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex 620 745 755
SKU: PS-6281-DA
Price: $126.68
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
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
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
H280P-01 - Dell 280-Watts 100-127V / 200-240V ATX Power Supply for OptiPlex GX 320 520 620 740 745 755 / Dimension C521
SKU: H280P-01
Price: $157.07
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
Dell HP-U2828F3 LF 280-Watts 100-240V ATX Power Supply for OptiPlex GX620 740 745 755
SKU: HP-U2828F3-LF
Price: $170.93
PS-5281-3DFS - Dell 280-Watts 100-240V ATX Power Supply for OptiPlex GX520 GX620 DT 745 755 / Dimension C521
SKU: PS-5281-3DFS
Price: $182.37
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.