Thermaltake Smart BX3 750W 80Plus Bronze ATX 3.1 Standard Power Supply, Non-Modular (PS-SPD-0750NNFABK-3)
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- SKU PS-SPD-0750NNFABK-3
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Unmatched Reliability ATX 3.1 Power Supply
The Smart BX3 series is designed to meet ATX 3.1 standards, offering 550W, 650W, and 750W options. It's perfect for budget-conscious users seeking an efficient and reliable entry-level power supply, backed by a solid 5-year warranty.

ATX 3.1 Ready
Smart BX3 series is fully compatible with ATX 3.1 specifications which supports up to 200% power excursion, reaches 60% low load efficiency and complies with required power supply timing standards.
ATX 3.1
ATX 2.0
Total power excursion
Be Smart, Stay Quiet
Equipped with a 120mm fluid bearing fan for superior airflow. Additionally, the built-in Smart Zero Fan spins only when the load reaches a certain percentage to minimize unwanted noise.

High Quality 105°C/221°F Main Capacitor
High quality main capacitor greatly improves the power supplies durability and ensures the Smart BX3 series is stable and reliable.

High Amperage Single +12V Rail & DC to DC Design
Powerful single +12V rail can properly deliver the power you need for the best compatibility. The use of DC to DC circuit design provides very stable operation and enhanced voltage regulation.

Built-in Industrial Grade Protection
To protect the hardware, Smart BX3 is built with industry grade protections: OCP(Over Current Protection), OVP (Over Voltage Protection), UVP(Under Voltage Protection), OPP(Over Power Protection), SCP(Short Circuit Protection), OTP(Over Temperature Protection).
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OCP
Over Current Protection
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OVP
Over Voltage Protection
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UVP
Under Voltage Protection
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OPP
Over Power Protection
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SCP
Short Circuit Protection
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OTP
Over Temperature Protection
Non-Modular Flat Cable Design
Smart BX3 series comes with soft black cables, designed to make cable installation an easy task while fully powering the system at optimal voltages.
| Connector Type | Connector Quantity | Cable Quantity | Cable Length | |
|---|---|---|---|---|
| Main Power (24Pin) |
X 1 | ![]() |
X 1 | 600mm |
| ATX 12V (4+4Pin) |
X 2 | ![]() |
X 1 | 650mm+150mm |
| PCIe (6+2Pin) |
X 2 | ![]() |
X 1 | 500mm+150mm |
| SATA (5Pin) |
X 4 | ![]() |
X 1 | 500mm+150mm +150mm+150mm |
| Peripheral | X 4 | ![]() |
X 1 | 500mm+150mm +150mm+150mm |
80 PLUS Bronze-Certified and Intel C6/C7 States Ready
Smart BX3 Bronze series saves energy through its high energy efficiency up to 85% and is certified to 80 PLUS® Bronze. It has been optimized to work with all generations of Intel’s processors to achieve maximum energy saving.

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Order Processing Time:
Orders are usually processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days.
Shipping Methods:
Standard Shipping (3-7 business days)
Expedited Shipping (2-3 business days)
Express Shipping (1-2 business days)
Packaging:
Rest assured that all items will be securely and safely packaged to prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.
Shipping Rates:
Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.
Order Tracking:
Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your account.
International Shipping:
We ship worldwide! Please note that international shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.




