EVGA 850 BQ 80+ Bronze Semi Modular Power Supply (850 W)

The EVGA 850 BQ is an 850-watt ATX power supply targeting mid-to-high-end PC builds that demand reliable, efficient power delivery without unnecessary expense. It carries 80 Plus Bronze certification, which means it operates at 85% efficiency or higher under typical load conditions, reducing wasted energy and limiting heat output inside the chassis. The BQ series uses a semi-modular cable design: the 24-pin ATX motherboard connector is permanently attached, while the remaining cables — including PCIe, EPS, SATA, and peripheral leads — can be connected or left out depending on your build. This approach keeps cable clutter manageable and improves airflow within the case without the added cost of a fully modular unit. Power delivery is handled via a single +12V rail rated at 70A (840W), offering straightforward compatibility with modern CPUs and discrete graphics cards. The +3.3V and +5V combined rails are rated at up to 160W, with individual maximums of 24A and 20A respectively. A +5Vsb rail provides up to 3A for standby functions. Thermal management is handled by a 140mm fan using a Teflon Nano-Steel Bearing, designed for near-silent operation across varying load levels. ECO mode is not included on this model, so the fan runs continuously during operation. Japanese-brand capacitors on the main PCB are specified to support long-term reliability, and the unit is rated for a mean time between failures (MTBF) of 100,000 hours. Operating temperature range is 0°C to 40°C. Protections include OVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), and SCP (Short Circuit Protection). The unit carries a 5-year manufacturer warranty. Verified Specifications: – Wattage: 850W total output – Efficiency: 80 Plus Bronze (≥85% under typical load) – Modular Type: Semi-Modular – Fan: 140mm Teflon Nano-Steel Bearing – +12V Rail: Single, 70A / 840W – +3.3V / +5V Combined: 160W max (24A / 20A) – +5Vsb: 3A / 15W – -12V: 0.3A / 3.6W – EPS Connectors: 2x 8-pin (4+4) – PCIe Connectors: 3x 8-pin (6+2), 3x 6-pin – SATA Connectors: 10x – 4-Pin Peripheral: 5x – Floppy Adapter: 1x – Input Voltage: 100–240V~, 12A, 50/60Hz – Dimensions: 85mm (H) x 150mm (W) x 165mm (L) – Weight: 7.03 lbs – MTBF: 100,000 hours – Operating Temp: 0°C to 40°C – ECO Mode: No – Japanese Capacitors: Main PCB – Warranty: 5 Years – Certifications: TUV, CB, CE, FCC, RCM, cTUVus, BSMI, CCC, WEEE, RoHS, ErP Lot 6 2013