Thermaltake Smart BX3 Pro SE 650W — ATX 3.1, 80 PLUS Bronze
650W ATX 3.180 PLUS BronzeSingle +12V 54.2A5-year warranty
The Thermaltake Smart BX3 Pro SE 650W is an ATX 3.1 desktop PC power supply with 80 PLUS Bronze efficiency (up to 88%), a single +12V rail rated at 54.2A and a 120mm fluid-dynamic-bearing fan, aimed at office PCs and mainstream gaming builds.
A single strong +12V rail with DC-to-DC conversion keeps the minor rails stable as load changes, and full protection (OCP, OVP, UVP, OPP, OTP, SCP) guards the components. The Smart Zero Fan mode keeps the fan stopped at low loads for quiet idle, and the low-profile flat black cables are easier to route in compact cases. Thermaltake rates it for 650W continuous at 40°C with 100,000 hours MTBF and backs it with a 5-year warranty.
Before you order: This model has two PCIe 6+2 connectors and no native 12V-2x6 (12VHPWR) connector — suitable for graphics cards that use 8-pin power. It accepts 200–240V AC input only, which matches mains supply in Cyprus.
What's in the Box
- Thermaltake Smart BX3 Pro SE 650W power supply
- AC power cord
- 4 mounting screws
- User manual
What It Means in Practice
- 650W comfortably powers a mid-range CPU with a graphics card needing up to two 8-pin connectors.
- Single-rail design means you do not need to balance loads across rails.
- Smart Zero Fan keeps the PSU silent in office and light-load use.
- Flat cables help airflow and neat routing in small ATX and mATX cases.
What Will Not Work
- No 12V-2x6 / 12VHPWR connector — cards that require it would need an adapter, which we do not recommend; choose a PSU with a native 12V-2x6 cable instead.
- Only two PCIe 6+2 connectors — not enough for cards that need three 8-pin inputs.
- Not for 110–120V mains — input is 200–240V AC.
- Not an SFX unit — requires an ATX PSU bay.
Key Features
ATX 3.1
Current Intel ATX standard with 80 PLUS Bronze efficiency up to 88%.
Single +12V rail
54.2A (650W) with DC-to-DC for stable minor rails.
Quiet cooling
120mm FDB fan with Smart Zero Fan mode.
Full protection
OCP, OVP, UVP, OPP, OTP and SCP; 100,000 h MTBF.
Technical Specifications
| Identification |
| Part Number |
PS-SPD-0650NNSABE-7 |
| EAN / GTIN |
4711658548689 |
| Brand |
Thermaltake |
| Model |
Smart BX3 Pro SE 650W (SPS-0650AH2NLB-3) |
| Electrical |
| Rated output |
650W continuous at 40°C |
| Standard |
ATX 3.1 |
| Efficiency |
80 PLUS Bronze, up to 88% |
| +12V |
Single rail 54.2A (650W) |
| +3.3V / +5V |
18A each, 110W combined |
| -12V / 5VSB |
0.3A / 3A |
| Input |
200–240V AC, 6.3A, 50/60Hz, active PFC |
| Hold-up time |
> 17 ms |
| Connectors |
| ATX 24-pin |
1x (600 mm) |
| EPS 4+4 pin |
2x on 1 cable (650 + 150 mm) |
| PCIe 6+2 pin |
2x on 1 cable (500 + 150 mm) |
| SATA |
4x on 2 cables |
| Peripheral 4-pin |
4x |
| 12V-2x6 (12VHPWR) |
None |
| Physical |
| Fan |
120 mm FDB, Smart Zero Fan |
| Cables |
Low-profile flat black cables |
| Dimensions |
150 x 86 x 140 mm |
| Colour |
Black |
| Operating temperature |
5–45°C |
| MTBF |
100,000 hours |
| Protection & compliance |
| Protections |
OCP · OVP · UVP · OPP · OTP · SCP |
| Safety |
CE · UKCA · CB · TÜV · LVD · RCM |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
5 years per Thermaltake — claims handled through Singular |
Frequently Asked Questions
Is 650W enough for my graphics card?
For most mid-range cards with one or two 8-pin connectors, yes. Send us your CPU and GPU and we will confirm the headroom.
Does it have a 12VHPWR / 12V-2x6 cable?
No. It provides two PCIe 6+2 connectors only.
Is it modular?
Thermaltake lists fixed cable lengths for this SE model and does not specify detachable cables, so plan for fixed cabling.
Singular Expert Insight · Buyer's Guide
The Smart BX3 Pro SE 650W is a solid, no-nonsense ATX 3.1 unit with a 5-year warranty — a good fit for office PCs and mainstream gaming builds with 8-pin graphics cards. For newer cards with a 12V-2x6 socket, pick a PSU with a native cable from our
PC power supplies.
✓ Buy it if you are building or upgrading a mainstream PC that needs up to two 8-pin GPU connectors.
✕ Skip it if your graphics card uses a 12V-2x6 / 12VHPWR socket or needs three 8-pin inputs.
→ Also consider an 80 PLUS Gold 650W unit if efficiency and lower heat matter to you.
Not sure 650W covers your build? Send us your CPU and graphics card models and we will check before you order.