Replacement for SSP-550RT: Drop-In Alternatives We Stock
Looking for a replacement for the SSP-550RT (SSP-550RT - SeaSonic 550 W 80+ Gold Certified ATX Power Supply)? Pro Disk Network ships drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the SSP-550RT
| SKU | SSP-550RT |
|---|---|
| Product | SSP-550RT - SeaSonic 550 W 80+ Gold Certified ATX Power Supply |
| Current price | $181.26 |
| Stock status | In Stock |
| Detail page | View SSP-550RT › |
Drop-in replacements for SSP-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.
SSP-300TBS - Seasonic SSP-300TBS 300W 80 PLUS Bronze TFX 12 V v.2.31 Power Supply w/ Active PFC F0
SKU: SSP-300TBS
Price: $318.32
S12G-550 - Seasonic SSR-550RT 550-Watts 80-Plus Gold ATX 12V Power Supply with Active PFC
SKU: S12G-550
Price: $432.28
220-G3-0550-Y1 - EVGA SuperNOVA 550 G3 550-Watts 80 Plus Gold Certified Fully Modular Eco Mode with HDB Fan Power Supply
SKU: 220-G3-0550-Y1
Price: $250.53
220-G2-0550-Y1 - EVGA SuperNOVA 550 G2 550-Watts 80 Plus Gold Certified Fully Modular Eco Mode Power Supply
SKU: 220-G2-0550-Y1
Price: $318.32
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
SSR-550RM - Seasonic 550-Watts 80-Plus Gold ATX 12V/EPS 12V Power Supply
SKU: SSR-550RM
Price: $349.43
SSR-550RT - Seasonic 550-Watts 80-Plus Gold ATX 12V Power Supply with Active PFC
SKU: SSR-550RT
Price: $368.42
NE550M Antec NeoECO Modular NE550M Power Supply 550 Watts 80 PLUS BRONZE Certified with 120 mm Silent Fan, CircuitShield Protection, ATX 12V 2.4 & EPS 12V, 3-Year Warranty
SKU: NE550M
Price: $259.50
220-G3-0650-Y1 - EVGA SuperNOVA 650 G3 650-Watts 80 Plus Gold Certified Fully Modular Eco Mode with HDB Fan ATX Power Supply
SKU: 220-G3-0650-Y1
Price: $395.34
220-G2-0750-XR - EVGA SuperNOVA 750 G2 750-Watts 80+ Gold Certified Fully Modular ATX Power Supply
SKU: 220-G2-0750-XR
Price: $732.43
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.