Seagate One Touch Hub External HDD in Black Grey 8 TB normal qua___24 ppm which can achieve better vibration which can achieve better vibration reduction and lower noise when compared to ordinary fans 8 mm Depth 117 mm Width 80 mm Packaging data Package weight 260 g Package height 140 mm Package depth 31 mm Package width 103 mm User guide Yes Cables included USB General Product Family Expansion Logistics data Harmonized System (HS) code 84717050 Other features Connectivity technology Wired 49 kg Package height 233 mm Package depth 78 mm Package width 222 mm User guide Yes Cables included USB General Product Family One Touch Logistics data Harmonized System (HS) code 84717050 24 kg Height 45