fs server cabinet ing guide fs lenovo 42u 1200mm deep racks 32u server rack cabinet adjule lenovo 42u 1200mm deep racks 12u 29in knock down server rack cabinet center rack 42u 19inch server rack size server rack weight understanding 42u server racks cr1687 1u vented server rack cabinet shelf startech com 1u server rack cabinet network cabinet 42u network cabinet weights and dimensions server racks size 3 feet at rs 27000