Amazon.com: HP Z420 Workstation Computer 8 Core Intel E5,HITACHI ZX200-6 (Excavators) at Kagoshima, Japan | Buy used,HITACHI ZX200-6 (Excavators) at Kagoshima, Japan | Buy used,Amazon.co.jp: Intel CPU Core i7-7740X 4.3GHz 8Mキャッシュ 4,HITACHI ZX200-6 (Excavators) at Kagoshima, Japan | Buy used,