All-in-1 Memory Card Reader/ Writer with Snap-in 3-port USB2.0 Hub (Black),Multiangle Flash Card Reader Red LED indicator for power and access,Dimension: 4.2cm(L) x 4cm(W) x 5.5cm(H) Fully plug and play and Hot swapping support Combo USB2.0 Multifunctional Card Reader/ Writer + 3 Port Hub Powered by USB connection cable, no external power required Suitable for notebook, PC, PAD, handheld PC,Connect USB hub in nay angle or any position