ASRock PRO-750B 750W 80 Plus Bronze ATX 3.1 PSU
ASRock
ASRock PRO-750B 750W 80 Plus Bronze ATX 3.1 PSU
The ASRock PRO-750B 750W 80 Plus Bronze ATX 3.1 PSU is built for value-focused desktop builders who need a reliable, standards-current power supply without paying for features they won't use. It delivers 750W of continuous power with full ATX 3.1 and PCIe 5.1 support, including a native 12V-2x6 connector rated at 450W for modern graphics cards. A comprehensive protection suite and a 3-year warranty make it a practical foundation for everyday to enthusiast builds.
Why this product
ATX 3.1 and PCIe 5.1 Ready
It meets the latest ATX 3.1 specification and includes a native 12V-2x6 connector rated at 450W, so it is ready for current and upcoming graphics cards without adapters.
80 PLUS Bronze efficiency certified
The 80 PLUS Bronze certification ensures a minimum level of energy conversion efficiency, helping to reduce heat output and running costs compared to uncertified units.
Six hardware protections built in
It includes over-current, over-voltage, under-voltage, over-power, over-temperature and short-circuit protection to guard components under normal to extreme power loads.
Color-coded connectors for correct seating
ASRock Classic Green connectors let builders visually confirm that each connector is fully inserted before powering on, reducing the risk of a poor connection.
All-Taiwanese capacitors
Internal capacitors are sourced from Taiwanese manufacturers, a detail that component-aware builders often look for when comparing PSU build quality.
3-year warranty included
ASRock backs this unit with a 3-year warranty, providing cover for long-term daily use in home or office desktop systems.
- Rated Output750W
- Efficiency Rating80 PLUS Bronze
- ATX StandardATX 3.1
- PCIe Connectors4
- Native 12V-2x6 Rating450W
- Fan Size120mm
- Warranty3 Years
- MTBF100,000 hours
- SKUASR-752
- EAN4711581491731
- Compatible with ATX 3.1 motherboards and cases that accept a standard ATX PSU (140 × 150 × 86 mm).
- Works with PCIe 5.1 graphics cards via the native 12V-2x6 connector (450W rated), without requiring a separate adapter.
- Accepts wide-range AC input (100–240 V, 50–60 Hz), making it suitable for use in most regions worldwide.
- Includes 4 PCIe connectors, 1 ATX connector and 1 EPS12V connector, covering typical multi-GPU or single high-end GPU configurations.
- The 12V-2x6 connector is rated at 450W; confirm your GPU's peak power draw does not exceed this figure on a single connector before choosing this unit.
- Not suitable for ITX or SFX form-factor cases that require a physically smaller PSU.
Best for
- Value-focused mid-range builders who want ATX 3.1 compliance and a full protection suite without the cost of Gold or Platinum efficiency tiers.
- Gamers and enthusiast desktop builders pairing a current-generation PCIe 5.1 GPU with a mid-range system, where 750W of continuous output covers most single-GPU configurations.
- Builders who prioritise connector clarity, as the color-coded Classic Green connectors reduce the chance of an improperly seated cable during assembly.
- Users who want documented long-term reliability, with a 100,000-hour MTBF rating and a 3-year warranty providing measurable assurance.
Trade-offs
- High-wattage workstation or multi-GPU builds requiring more than 750W continuous output — the PRO series also offers 850W options for those needs.
- Efficiency-critical users who require Gold or Platinum certification; Bronze is the lowest tier offered in this product line and will convert less of the drawn power compared to higher-rated units.
- Small form-factor builds using ITX or SFX cases, as the standard ATX dimensions (140 × 150 × 86 mm) will not fit those enclosures.
- Users expecting a longer warranty period; the 3-year warranty is shorter than the 5- to 10-year coverage offered by some competing units in the same wattage class.
With ASRock Classic Green connectors, users can easily see if the connector has been plugged properly.
The PRO series is created for value-focused users, offering 80 PLUS Bronze models in 850W, 750W, and 650W options. Full suite of protections to keep all components safe during normal to extreme power levels. ASRock offers an outstanding 3 –Year warranty, guaranteeing long term reliable and peace of mind operation.
General
| Brand | ASRock |
|---|---|
| Part Number | 90-UXR075-BNUAA2 |
| Form Factor | ATX |
| ATX 12V Version | ATX 3.1 |
| Efficiency Certification | 80 PLUS Bronze |
| Warranty | 3 Years |
Power Output
| Total Continuous Output | 750W |
|---|---|
| Continuous +12V Output | 62.5A |
| Native 12V-2x6 Connector Rating | 450W |
Connectors
| ATX Connector | 1 |
|---|---|
| EPS12V Connector | 1 |
| PCIe Connectors | 4 |
| PCIe Standard | PCIe 5.1 |
Build & Protection
| Fan Size | 120mm |
|---|---|
| Capacitors | All-Taiwanese |
| Protections | OCP, OVP, UVP, OPP, OTP, SCP |
| MTBF | 100,000 hours |
| AC Input | 100–240V~, 50–60Hz, 10–5A |
| Dimensions | 140 × 150 × 86mm |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.