Features: Simple and compact design, low power, space-saving, easy to carry. Support to customize the SD card storage function, support up to 256GB. Support multi-users sharing one printer of a wireless network simultaneously. Compatible with more than 95% of the brand USB printers on the market. High speed USB 2.0 printer connection,support to print the images and text, equipped with 1x 10/100 Mbps RJ-45 LAN port. Specifications: WiFi Function: Compliant with 802.11b/g/n Wireless Networks 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: Windows XP or Higher, -Android & -iOS Hardware Parameters: ARM 9 300MHz/128MB Flash Material: ABS Size: Approx. 5.5x5.5x3cm/2.16x2.16x1.18in Color: White /Gray Package Includes: 1 PC x Network Print Server note: 1. Note that the product does not have Bluetooth-compatible function, the product supports network cable transmission and WIFI transmission. 2. The product supports remote printing function, supports remote network cable printing and remote wifi printing 3. This product supports mobile phones with Android and iOS systems for transmission