ATX / E-ATX / Micro ATX / Mini ITX. ATX Mid Tower. Aluminum / Steel / Tempered Glass. Learn more aboutLian Li O11DEXL-X. Bottom - 3 x 120mm / Bottom - 3 x 140mm / Rear - 2 x 120mm / Side - 3 x 120mm / Side - 3 x 140mm / Top - 3 x 120mm / Top - 3 x 140mm.