Alternative to SS-850KM3: Better-Value Equivalents in Stock
Comparing the SS-850KM3 (SS-850KM3 - Seasonic X-850 Active PFC F3 850-Watts 80-Plus Gold ATX 12V/EPS 12V Power Supply) against alternatives? Pro Disk Network stocks 12 similar 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 SS-850KM3
| SKU | SS-850KM3 |
|---|---|
| Product | SS-850KM3 - Seasonic X-850 Active PFC F3 850-Watts 80-Plus Gold ATX 12V/EPS 12V Power Supply |
| Current price | $397.89 |
| Stock status | In Stock |
| Detail page | View SS-850KM3 › |
Alternatives to SS-850KM3
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.
SSR-750RT - Seasonic 750-Watts 80-Plus Gold ATX 12V/EPS 12V Power Supply with Active PFC
SKU: SSR-750RT
Price: $229.57
S12G-750 - Seasonic SSR-750RT 750-Watts 80-Plus Gold ATX 12V/EPS 12V Power Supply with Active PFC
SKU: S12G-750
Price: $242.57
SSR-750RM - Seasonic Active PFC F3 750-Watts 80-Plus Gold ATX 12V / EPS 12V Power Supply
SKU: SSR-750RM
Price: $251.47
SSR-550RT - Seasonic 550-Watts 80-Plus Gold ATX 12V Power Supply with Active PFC
SKU: SSR-550RT
Price: $368.42
S12G-550 - Seasonic SSR-550RT 550-Watts 80-Plus Gold ATX 12V Power Supply with Active PFC
SKU: S12G-550
Price: $432.28
SS-1250XM2 - Seasonic 1250-Watts 80-Plus Gold ATX 12V Power Supply with Active PFC
SKU: SS-1250XM2
Price: $811.63
0761345-06205-3 - Antec High Current Gamer Series 520-Watts ATX12V 80+ Bronze Certified Active PFC Power Supply For Active PFC
SKU: 0761345-06205-3
Price: $348.70
SSP-300ST - Seasonic 300-Watts 80-Plus Bronze ATX 12V v2.3 Power Supply with Active PFC
SKU: SSP-300ST
Price: $242.41
SSP-350ST - Seasonic 350-Watts 80-Plus Bronze ATX 12V v2.3 Power Supply with Active PFC
SKU: SSP-350ST
Price: $247.58
SS-460FL2 - Seasonic 460-Watts Active PFC F3 80-Plus Platinum Fanless ATX 12V/EPS 12V Power Supply
SKU: SS-460FL2
Price: $248.16
SS-400H1U - Seasonic 80+ 1U 400-Watts ATX 12V ACTIVE PFC 80-Plus Power Supply
SKU: SS-400H1U
Price: $250.53
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.