Alternative to CX305N: Better-Value Equivalents in Stock
Comparing the CX305N (CX305N - Dell 305-Watts Power Supply For Dimension 3100/5150/E510/E520/Optiplex MT GX320/GX620/SC430/SC440) 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 CX305N
| SKU | CX305N |
|---|---|
| Product | CX305N - Dell 305-Watts Power Supply For Dimension 3100/5150/E510/E520/Optiplex MT GX320/GX620/SC430/SC440 |
| Current price | $189.47 |
| Stock status | In Stock |
| Detail page | View CX305N › |
Alternatives to CX305N
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.
N305P-04 - Dell 305-Watts 100-120V / 200-240V ATX Power Supply for Dimension 3100 5150 E510 E520 / OptiPlex MT GX320 GX620 SC430 SC440
SKU: N305P-04
Price: $117.89
Dell NPS-305EB B 305-Watts 100-120V / 200-240V ATX Power Supply for Dimension 3100 5150 E510 E520 / OptiPlex MT GX320 GX620 SC430 SC440
SKU: NPS-305EB-B
Price: $150.09
N305P-00 - Dell 305-Watts 100-120V / 200-240V ATX Power Supply for Dimension 3100 5150 E510 E520 / OptiPlex MT GX320 GX620 SC430 SC440
SKU: N305P-00
Price: $182.37
CX305N-00 - Dell 305-Watts Power Supply For Dimension 3100/5150/E510/E520/Optiplex MT GX320/GX620/SC430/SC440
SKU: CX305N-00
Price: $205.26
N305P-03 - Dell 305-Watts 100-120V / 200-240V ATX Power Supply for Dimension 3100 5150 E510 E520 / OptiPlex MT GX320 GX620 SC430 SC440
SKU: N305P-03
Price: $205.26
X8129 - Dell 305-Watts ATX Power Supply For Dimension 3100/5150/E510/E520/Optiplex MT GX320 GX620/SC430 SC440
SKU: X8129
Price: $205.26
0X8129 - Dell 305-Watts ATX Power Supply For Dimension 3100/5150/E510/E520/Optiplex MT GX320 GX620/SC430 SC440
SKU: 0X8129
Price: $205.26
Dell NPS-305CB B 305-Watts 100-120V / 200-240V ATX Power Supply for Dimension 3100 5150 E510 E520 / OptiPlex MT GX320 GX620 SC430 SC440
SKU: NPS-305CB-B
Price: $205.26
Dell HP-P3107F3P LF 305-Watts 100-120V / 200-240V ATX Power Supply for Dimension 3100 5150 E510 E520 / OptiPlex MT GX320 GX620 SC430 SC440
SKU: HP-P3107F3P-LF
Price: $209.37
H305P-00 - Dell 305-Watts 100-120V / 200-240V ATX Power Supply for Dimension 3100 5150 E510 E520 / Optiplex MT GX320 GX620 SC430 SC440
SKU: H305P-00
Price: $229.08
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.