Corsair Professional Series HX520 Power Supply Used, but in excellent working order. High quality and reliable computer power supply. Comes with original box, leads etc. Latest ATX12V 2.2/EPS12V 2.91 and RoHS standards, and delivers unparalleled continuous power to all of your critical system components reliably and safely. Corsair’s easily detachable and flexible modular cables allow you to use only the cables you need and enhance the air flow inside your system. Corsair HX Series Features: Supports the latest ATX12V v2.2 and EPS12V 2.91 standards and is backwards compatible with ATX12V 2.01 systems. Guaranteed compatibility with dual-GPU configurations. Double forward switching circuitry design offers high efficiency, up to 80% under wide load range. Active Power Factor Correction with PF value=0.99 provides clean and reliable power to your system. Universal AC input 90~264V automatically scans and detects the correct voltage. No more hassle of flipping that tiny red switch! Ultra quiet 120mm double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying the RPM in response to temperature. Guaranteed to deliver rated specifications at 50ºC. Triple 12V Rails provide independent reliable power to the CPU, video card and other components with a combined rating of 50A (40A on 520W) maximum! Advanced circuitry design that automatically enables power sharing between the triple +12V rails in an event of overload on any single +12V rail. Powerful +5Vsb rail with 3A rating. Over Current/Voltage/Power Protection, Under Voltage Protection, and Short Circuit Protection provide maximum safety for your critical system components. 105ºC rated industrial grade capacitors provide uncompromised performance and reliability, delivering 4 times the lifespan of conventional 85ºC rated capacitors. Enhanced modular flexible cables enable easier cable routing and increased airflow in the system. 8 Serial ATA connectors (4 on 520W). Dimension: 5.9"(W) x 3.4"(H) X 5.9"(L)150mm(W) x 86mm(H) x 150mm(L) MTBF: 100,000 Hours Safety Approvals: UL, CUL, CE, CB, FCC Class B, TÜV, CCC, C-tick. Technical Specifications: MTBF: 100,000 hours 80 Plus: Certified Power: 520 Watts Modular: Yes ATX Connector: 1 EPS Connector: 1 Floppy Connector: 2 Four Pin Peripheral Connector: 10 PCI Connector: 2 Reviews: HardOCP: Editor's Choice Award for HX520W "Overall the HX520W is a very well built unit as we have seen with all of Corsair's units to date. There really aren't any drawbacks in the build quality that we have seen here today as the design is good, and the unit employs excellent components with excellent workmanship. For users looking for the most premium experience the choice is clear, the HX520W." Can be posted, please enquire for the cost if you require this. Thank