Alternative to 3859D: Better-Value Equivalents in Stock
Comparing the 3859D (3859D - Dell 410-Watts 100-240V ATX Power Supply for Precision 420) 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 3859D
| SKU | 3859D |
|---|---|
| Product | 3859D - Dell 410-Watts 100-240V ATX Power Supply for Precision 420 |
| Current price | $131.58 |
| Stock status | In Stock |
| Detail page | View 3859D › |
Alternatives to 3859D
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.
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
0G192T - Dell 350-Watts 100-127V / 200-240V ATX Power Supply for Vostro 410 XPS 8100
SKU: 0G192T
Price: $184.09
G192T - Dell 350-Watts 100-127V / 200-240V ATX Power Supply for Vostro 410 XPS 8100
SKU: G192T
Price: $184.09
NPS-375ABA - Dell 375-Watts 100-120V 200-240V ATX Power Supply for Dimension 9100 9150 9200 Precision 380 390 XPS 400 410 420
SKU: NPS-375ABA
Price: $205.26
PH344 - Dell 375-Watts 100-120V/200-240V ATX PFC Power Supply for Dimension 9100/9150/9200, Precision 380/390, XPS 400/410/420
SKU: PH344
Price: $211.58
0PH344 - Dell 375-Watts 100-120V/200-240V ATX PFC Power Supply for Dimension 9100/9150/9200, Precision 380/390, XPS 400/410/420
SKU: 0PH344
Price: $211.58
NPS-375ABB - Dell 375-Watts 100-120V 200-240V ATX Power Supply for Dimension 9100 9150 9200 Precision 380 390 XPS 400 410 420
SKU: NPS-375ABB
Price: $226.08
M631C - Dell 350-Watts 100-240V ATX Power Supply for Vostro 200 400 410 / Inspiron 530 531
SKU: M631C
Price: $226.08
N375P-00 - Dell 375-Watts 100-120V/200-240V ATX Power Supply for Dimension 9100/9150/9200, Precision 380/390, XPS 400/410/420
SKU: N375P-00
Price: $247.58
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.