Alternative to SSR-550RT: Better-Value Equivalents in Stock
Comparing the SSR-550RT (SSR-550RT - Seasonic 550-Watts 80-Plus Gold ATX 12V Power Supply with Active PFC) 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 SSR-550RT
| SKU | SSR-550RT |
|---|---|
| Product | SSR-550RT - Seasonic 550-Watts 80-Plus Gold ATX 12V Power Supply with Active PFC |
| Current price | $368.42 |
| Stock status | In Stock |
| Detail page | View SSR-550RT › |
Alternatives to SSR-550RT
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.
S12G-550 - Seasonic SSR-550RT 550-Watts 80-Plus Gold ATX 12V Power Supply with Active PFC
SKU: S12G-550
Price: $432.28
SSR-550RM - Seasonic 550-Watts 80-Plus Gold ATX 12V/EPS 12V Power Supply
SKU: SSR-550RM
Price: $349.43
SSR-650FM - Seasonic SSR-650FM FOCUS 650W 80 PLUS Gold ATX12V Power Supply
SKU: SSR-650FM
Price: $282.20
SSR-550FM - Seasonic SSR-550FM FOCUS 550W 80 PLUS Gold ATX12V Power Supply
SKU: SSR-550FM
Price: $344.84
SSR-550FX Seasonic SSR-550FX FOCUS 550W 80 Plus Gold ATX12V Power Supply w/ Fully Modular
SKU: SSR-550FX
Price: $444.57
SSR-750FM - Seasonic SSR-750FM FOCUS 750W 80 PLUS Gold ATX12V Power Supply
SKU: SSR-750FM
Price: $447.63
SSR-1000GD - Seasonic SSR-1000GD PRIME 1000W 80 PLUS Gold ATX12V Power Supply
SKU: SSR-1000GD
Price: $667.50
SSR-500GB3 - Seasonic S12III Series SSR-500GB3 500W 80 PLUS Bronze ATX12V Power Supply
SKU: SSR-500GB3
Price: $241.68
SSR-650GB3 - Seasonic S12III Series SSR-650GB3 650W 80 PLUS Bronze ATX12V Power Supply
SKU: SSR-650GB3
Price: $259.50
SSR-550PD2 - Seasonic SSR-550PD2 PRIME Ultra Platinum 550W 80 Plus Platinum ATX12V Power Supply
SKU: SSR-550PD2
Price: $313.66
SSR-1300PD - Seasonic SSR-1300PD PRIME 1300W 80 PLUS Platinum ATX12V Power Supply
SKU: SSR-1300PD
Price: $667.30
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.