Used miner smoke free home has 4 boards all work but 1. You maybe able to fix it yourself. One plug for that board burned ends and cables from PSU has burned end also. I just took it all apart and cleaned inside and out. Has wear and tear on the case and one fan. One fan grill has some rust it may come off if you try with a sos pad. No warranty or returns/ refunds. You are purchasing AS IS. I have listed all I known to not work properly. I do have more photos of close up I can email. This ad only lets so many post.

Parameters of ANTMINER L3 Product model: L3 Total quantity of hash chips: 288PCS Total quantity of hash boards: 4PCS Total hash rate: 580MH/s DC voltage input: 11.60~13.00 V DC current input @12V DC input: 73A +10% DC Power @12V DC input: 876W +10% 220VAC Power @25℃, 93% conversion efficiency of APW3: 942W +10% 220VAC Power efficiency @25℃, 93% conversion efficiency of APW3: 1.62 J/MH +10% Weight（without package）: 4.4 kg Operation temperature: 0-40 ℃ Storage temperature: -40-85℃ Operation h