State-of-the-art gallium nitride transistors, and 100% 105 DegreeC Japanese capacitors deliver 1600W of ultra-stable, ultra-efficient power, while the AX1600i's digital design allows for complete control and monitoring in CORSAIR LINK software. External Self-Locking Retaining Ring: 0.04" Groove Dia, 3/8" Shaft Dia, 15-7 Grade 632 Stainless Steel. 0.374" Free Dia, 0.376" Free OD, 0.01" Ring Thickness World Class Electrical Performance for incredibly stable voltages and ultra-low ripple noise The only enthusiast PSU to use Totem-pole PFC Gallium Nitride (GaN) transistors for superior efficiency in a smaller form-factor over traditional silicon parts Corsair AXi Series AX1600i – 1600W 80Plus Titanium Fully Modular | QdL... 750w Psu CORSAIR AXi Series AX1600i CP-9020087-NA 1600W Digital ATX Power Supply Cp 9020087 Na Release Date Zero RPM Fan mode ensures near-silent operation at low and medium loads and the fully modular, low profile cable set makes for easy installation and great-looking builds. Corsair AX1600i Review - Tom's Hardware | Tom's Hardware Powerful CORSAIR LINK software monitoring and control allows you to supervise and adjust PSU power settings and switch from single to multi overcurrent protection (OCP) on-the-fly Continuous output rated temperature C: 50°C. Delivers 1600W of continuous ultra-stable 80 PLUS Titanium efficiency power Fan bearing technology - Fluid Dynamic Bearing.