APC AP7723 – Rack Mount Automatic Transfer Switch. I have three of these available – listing is for one unit. These were acquired used and I never ended up using them – unknown history prior to that. Good physical condition and assumed fully functional. APC AP7723 Rack ATS. Mounting brackets available (first come first serve – ask). Power cables available on request. Input: 2x IEC 309 16A (two separate feeds). Output: 16x C13, 2x C19. Max load: 16A / 3.7kW. Form factor: 2U rackmount. What does it do? Feeds your rack from two independent power sources – if one feed drops, the ATS switches to the other automatically. Gives you mains redundancy without needing dual-PSU equipment in every device. Essential for anyone serious about uptime. Collection welcome from the Reading/Berkshire area. Any questions, just drop me a message.