Fangrui Product Details Features:1. Plug-and-play --no Drivers Required; Usb Port Required.2. Compatible With Most Computers System: Windowns98/95/nt/me/2000/xp/vista/7.0/8.0/10).3. Spill Resistant And Dust Proof.4. For Notebook Users Who Work With Number Keys, Mini Digital Keyboard.5. Integrated Ergonomic Tilt Provides Added Comfort Which Helps Reduce Strain, Great For Those Working On Spreadsheets, Accounting Files Or Financial Applications.specification:product Name:super Slim Numeric Keypadcharacteristic:slim Keycapcompatibility:usbczble Length:about 120cminput Power(5vdc):number Of Keys:18keysdimension:(l*w*h)86*14*10(mm)note:1. Please Allow 1-3mm Error Due To Manual Measurement. Thanks For Your Understanding.2. Monitors Are Not Calibrated Same, Item Color Displayed In Photos May Be Showing Slightly Different From The Real Object. Please Take The Real One As Standard.package Content:1 X Usb Numeric Keypadno Retail Packing