1) 1 upstream and 4 downstream USB port included 2) Fully compliant with USB specification version 3.0 3) Hot plug & play USB device 4) Half-transparent design with blue LED for power 5) Interface: USB 3.0, compatible with USB 2.0 and 1.1 6) Data transfer rate: 1.5Mbps / 12Mbps / 480Mbps, up to 5Gbps 7) Bus-power limit current protection 500mA 8) Cable length: 60cm 9) Size; 10.5cm x 3.5cm x 2.2cmSpecification: General Compatible with Apple: iMac 27inch A2115 5K (2020), iMac 27inch A2115 5K (2019), iMac 21.5inch A2116 4K (2019), iMac 21.5inch A1418 (Mid 2017), iMac 27inch A1419 (Mid 2015), iMac 21.5inch A1418 (Late 2015), iMac 21.5inch A1418 (2013), iMac 27inch A1419 (2012-2013), iMac 27inch A1312 (Mid 2011), iMac 21.5inch A1311 (Mid 2011), iMac 21.5inch A1311 (Mid 2010), iMac 27inch A1312 - Late 2009 (EMC 2309), iMac 21.5inch A1311 (Late 2009) Lenovo: Z410, K4450, K2450, E455, E545, X240, T431S, S210T, M4400S, X230S, Z505, S410P, X230i, V4400U, E430, K4350A, E535, T430, X220i ThinkPad: T480s, X1 Yoga 2018, S2 Yoga 2018, T580, S2 2018, S1 2018, X1 Carbon 2018, E580, A275, A475, E480, T480, T470s, T470, X1 Carbon 2017, T470p, T570, E475, X270, P51s, E575, E570C, X1 Yoga 2017, E470C, E570, E470, T560, T460P, T460s, T460, X1 Carbon 2016, X1 Tablet, E560, X260, E565, E460, E465, T550, E555, T450s, T450, E550, E531, E431 ASUS: Transformer Pad TF303CL Acer: SF315-51G-52A8, PH317-51-772 / Helios 300, A715-71G-78Z8, AN515-51-50MK, Iconia One 8 / B1-850, PT715-51-76BB, TMP278, VN7-793G-766H, GX-791-77CF Package Weight One Package Weight 0.11kgs / 0.23lb One Package Size 21.5cm * 10.5cm * 3cm / 8.46inch * 4.13inch * 1.18inch Qty per Carton 80 Carton Weight 10.30kgs / 22.71lb Carton Size 42cm * 42cm * 30cm / 16.54inch * 16.54inch * 11.81inch Loading Container 20GP: 503 cartons * 80 pcs = 40240 pcs40HQ: 1169 cartons * 80 pcs = 93520 pcs