[ POWER CONVERSION // IDENTIFIED MODEL ]
FSP DAGGER PRO 650 (SDA2-650)
FSP DAGGER PRO 650 W SFX PSU, model SDA2-650. This entry covers the specific model or bounded historical system assembly identified here; suffixes and supplier revisions are not presumed equivalent.
HIGH-VOLTAGE SAFETY: Disconnect mains before external inspection. Never open a PSU. Internal capacitors can retain dangerous charge after disconnection. Do not probe or repair its interior; use qualified service or replace it.
Model-specific ratings & fit
| Manufacturer identity | FSP DAGGER PRO 650 W SFX PSU, model SDA2-650 |
|---|---|
| Form factor / generation | SFX12V, 650 W Gold |
| AC input | 100–240 V AC, check SDA2-650 nameplate for line current/frequency. |
| DC output | 650 W continuous; +12 V 54.2 A class; minor rail limits and combined power per SDA2-650 output table. |
| Dimensions / mounting | 125 × 100 × 63.5 mm, SFX. |
| Connectors | Fully modular ATX 24-pin, EPS, PCIe, SATA/peripheral; exact bundle and GPU lead depend on revision; use official manual. |
| Revision distinctions | SDA2-650 is earlier Dagger Pro generation; do not assign Gen5 SDA2-650GEN5 cable/connector specifications without matching label. |
Compatibility & safe handling
- Verify full model, suffix, region and revision using the actual unit nameplate and matching manufacturer manual. Wattage and plug shape alone do not establish compatibility.
- Check AC input range, rail and combined output limits, derating, signaling/pinout, cooling direction, mounting and system qualification before installation.
- PSU modular-side cables are model-specific. Never reuse an unapproved lead; a matching plug can carry a different pinout.
- Server hot-plug is permitted only in qualified host configurations and under the host’s documented redundancy/live-service procedure.
- Never open or internally probe the supply. Retire damaged, wet, burnt, corroded, modified or unidentified units.
Revision & archival notes
SDA2-650 is earlier Dagger Pro generation; do not assign Gen5 SDA2-650GEN5 cable/connector specifications without matching label.
Archive full SDA2-650 model/region and manual. ATX bracket changes mechanical mounting only; electrical SFX pinout remains unit-specific.
Photograph the full nameplate, model/FRU, supplier, revision/date code, line selector, cable ends, mounting orientation and source-document issue. Keep observed label data separate from test results.
Manufacturer or primary references
- FSP DAGGER PRO 650 (SDA2-650) — manufacturer/product or primary technical referenceFSP DAGGER PRO 650 W SFX PSU, model SDA2-650. Check the exact revision, region and system support information.
- Intel ATX / ATX12V Power Supply Design GuideReference for desktop ATX context only. Proprietary historical and hot-swap server outputs are not made interchangeable by ATX standards.
The specific PSU nameplate and corresponding model/service documentation remain controlling.