Come and see our amazing products. This USB Card Reader offers you easy connection between flash memory card and a USB-A/USB-C/Thunderbolt 3 enabled computers, laptops, smartphones and tablets with OTG function. Simply change your phone into a host for data sync. Connect clients to your business with this 2-in-1 card reader which supports micro USB and standard USB , it can read SD(HC), MMC/TF card. The LED light will flash when it starts working. From trade shows to college bookstores, this practical promotion will stand out even more with an imprint of your logo or company name. Pls confirm with us about the packing info, stock color and exact production time before placing your order