Replacement for SG650: Drop-In Alternatives We Stock
Looking for a replacement for the SG650 (SG650 - Antec Signature SG 650 650-Watts ATX12V & EPS12V 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 SG650
| SKU | SG650 |
|---|---|
| Product | SG650 - Antec Signature SG 650 650-Watts ATX12V & EPS12V Power Supply |
| Stock status | In Stock |
| Detail page | View SG650 › |
Drop-in replacements for SG650
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.
TP3-650 - Antec 650 Watts ATX 12V EPS 12V Power Supply with Three 12V Rails
SKU: TP3-650
Price: $235.79
110-BQ-0650-V1 - EVGA 650 BQ 650-Watts 80 Plus Bronze Certified Semi Modular ATX Power Supply
SKU: 110-BQ-0650-V1
Price: $211.00
210-GQ-0650-V1 - EVGA 650 GQ 650-Watts 80 Plus Gold Certified Semi Modular Eco Mode Power Supply
SKU: 210-GQ-0650-V1
Price: $253.47
120-G1-0650-XR - EVGA SuperNOVA 650 G1 650-Watts 80 Plus Gold Power Supply
SKU: 120-G1-0650-XR
Price: $318.32
220-B3-0650-V1 - EVGA 650 B3 650-Watts 80 Plus Bronze Fully Modular Eco Mode Power Supply
SKU: 220-B3-0650-V1
Price: $350.14
220-G2-0650-Y1 - EVGA SuperNOVA 650 G2 650-Watts 80 Plus Gold Certified Fully Modular Eco Mode Power Supply
SKU: 220-G2-0650-Y1
Price: $357.09
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
SS-650KM3 - Seasonic X-650 650-Watts 80-Plus Gold ATX 12V / EPS 12V Power Supply
SKU: SS-650KM3
Price: $585.34
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.