This product is either discontinued or we cannot get that from suppliers.
Type: Intel Form Factor ATX 12V v3.0, PFC: Active PFC (>0.9 typical), Input Voltage: 100-240 Vac (full range), Input Current: 12-6A, Input Frequency: 60-50 Hz, Output Capacity: 850W, 03 Years Limited Warranty, GP-UD850GM-PG5.