Simple and compact design, low power, space-saving, easy to carry. Support to print the images and text, equipped with 1x 10/100 Mbps RJ-45 LAN port. USB 2.0 High speed printer connection, support multi-users sharing one printer of a wireless simultaneously. Support to customize the card storage function, support up to 256GB. Compatible with more than 95% of the brand USB printers on the market. Specifications: Printer Support: Support Printers with Standard USB 2.0 Port Operating System: Linux 3.4 Interface: USB2.0 Host+USB2.0 Device+Enternet Card Expansion: Support up to 256GB Power Voltage: 5V Support Working System: XP or Higher, -Android Size: Approx 5.5X5.5X3CM/2.16x2.16x1.18inch Colour:White Material:plastic Package Contents: 3 x Print Server Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.