the ASIC chip BM1489
The hashrate of Antminer L7 is as high as 9500MH/s, which is known as "one L7 is equivalent to 19 L3+". The picture below shows its product overview and the ASIC chip BM1489 it uses. To replace the BM1489: https://www.zeusbtc.com/ASIC-Miner-Repair/Parts-Tools-Details.asp?ID=1558













