Be Quiet! 850W Straight Power 11 PSU, Fully Modular, Fluid Dynamic Fan, SLI/XFire, 80+ Gold UK-Wide Next Business Day Delivery
Powerful 850W fully modular PSU with 80+ Gold efficiency, a quiet 135 mm Silent Wings 3 fan, quad +12V rails, 11 SATA and 4 PCIe connectors, active PFC, low‑noise operation and comprehensive protection.
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| Brand | Be Quiet |
| Model | BN284 |
| MPN | BN284 |
| EAN | 4260052185797 |
| ASIN | B079D72PNV |
| SKU | BN284 |
| 80 plus certificate | 80 PLUS Gold |
| AC input frequency | 50 - 60 Hz |
| AC input voltage | 100 - 240 V |
| Additional features | See Overview |
| Cable management | Yes |
| Case colour | Black |
| Certification | CE, FCC, TÜV, cTUVus, RCM, BSMI, CU |
| Cooling | Fan |
| Depth | 170 mm |
| Dimensions | 150 x 86 x 170 (WxHxD) |
| Edition | Straight Power 11 |
| Efficiency | 93% |
| EPS 12V | Yes |
| EPS version | 2.92 |
| Fan diameter | 13.5 cm |
| Fans | 1 x 135mm |
| Height | 86 mm |
| Illumination | No |
| Input current | 10 A |
| Internal +12V Rails | Quad Rail |
| Manual | Yes |
| Maximum Combined Output +12V | 70.8 A |
| Modular | Yes |
| Modularity | Full Modular |
| Motherboard Connector | 20+4-pin |
| Motherboard Power Connectors | 4 + 4 + 8-Pin |
| Noise | 0dB Technology |
| Number of fans | 1 fan(s) |
| On/off switch | Yes |
| Package depth | 328 mm |
| Package Height | 102 mm |
| Package type | Retail |
| Package width | 248 mm |
| PCI-E Pin Type | 6+2-Pin |
| Power | 850 W |
| Power factor | 0.99 |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage |
| PSU Form Factor | ATX |
| Purpose | PC |
| Rail 1 +12V | 21 A |
| Refresh rate | 60Hz 2Ms Response Time |
| Safety | OCP / OVP / UVP / SCP / OTP / OPP |
| Screws included | Yes |
| SLI/CrossFire | Yes |
| Warranty | 5 Years |
| Weight | 1.8 kg |
| Width | 150 mm |
