・3 Interfaces:Allows printing via USB cable,serial cable,and even printer sharing by multiple different computers via Ethernet/LAN,also includes RJ11/RJ12 cash drawer port ・High-speed and Inkless Printing:With auto-cut function,print speed up to 250 mm/s. Thermal means you never need to replace ink cartridges again. Paper width is 80mm ・Suitable Occasions:Perfect for restaurants,coffee shops,bars,gas stations,etc ・Easy to Use:Easy-to-understand user manual allows you to upgrade your in-store operations in minutes ・Compatibility:Supports Windows XP/Vista/7/8 /10,can add store Logo on receipts Specification: ・Printing media:thermal receipt paper ・Printing width:72mm ・Printing speed:250mm/s ・Printing resolution:203dpi ・Paper roll width:80mm ・Paper roll diameter:80mm ・Interface:USB+serial port+network port ・Command:ESC ・Power adapter voltage and current:24V/2.5A Package included: ・1 x Printer ・1 x Serial Port Line ・1 x English User Manual ・1 x USB Cable ・1 x Power Adapter Cord ・1 Roll x Printing Paper ・Other things not included