Brand NEW! Version Keyboard: Microsoft wired keyboard 400 Mouse: Microsoft wired mouse 400 Interface USB Typing Speed Keyboard: 1000 characters per minute Number of Keys 104 Tracking Technology Mouse Tracking System: Optical technology Imaging Rate: 1500 frames per second X-Y Resolution: 800 points per inch (31.5 points per mm) Tracking Speed: Up to 20'' (508 mm) per second System Requirements Microsoft Windows 8.1, Windows 8, and Windows 7 Mac OS X v10.7-10.9 Android 3.2 and 4.2 60 MB (Install 100 MB free) USB port CD Drive Life Keyboard QWERTY Key: 20,000,000 actuations per key Mouse Right and Left Button: 3,000,000 actuations at no more than 4 actuations per second Wheel Button: 1,000,000 actuations at no more than 4 actuations per second Wheel Vertical Scrolling: 100,000 revolutions (away from user) and 300,000 revolutions (towards user) at no more than 60 rotations per minute Special Features Mouse Mouse Button: 3 x buttons including scroll wheel button Mouse Scrolling: Standard vertical scrolling Compliant Standards ISO 9001/14001 qualified manufacturer FCC ID Agency and Regulatory Approvals ACMA Declaration of Conformity (Australia) ICES-003 report on file (Canada) EIP Pollution Control Mark, EPUP (China) CE Declaration of Conformity (European Union) WEEE (European Union) VCCI Certificate (Japan) KCC Certificate (Korea) GOST Certificate (Russia) CITC Letter (Kingdom of Saudi Arabia) BSMI Certificate (Taiwan) FCC Declaration of Conformity (USA) UL and cUL Listed Accessory (USA and Canada) CB Scheme Certificate (International) Windows Certification Kit (WCK) Keyboard ID: 1608518 (32-bit) and 1608519 (64-bit) Microsoft Windows 8 Mouse ID: 1609536 (32-bit) and 1608538 (64-bit) Microsoft Windows 8 Temperature Operating: 14 to 104F (-10 to 40C) Storage: -40 to 140F (-40 to 60C) Relative Humidity Operating: 5 to 80% (non-condensing) Storage: 5 to 65% (non-condensing) Cable Length Keyboard: 78.7" (199.9 cm) Mouse: 71 +6/0" (180 +15/0 cm) Dimensions (L x W x H) Keyboard: 17.9 x 6.28 x 1.68" (456.00 x 160.00 x 42.70 mm) with tilt legs extended Mouse: 4.47 x 2.28 x 1.54" (113.00 x 57.90 x 39.20 mm) Weight Keyboard: 20.1 oz (595.0 g) Mouse: 4.13 oz (117.00 g) Packaging Info Package Weight 1.9 lb Box Dimensions (LxWxH) 21.7 x 7.0 x 1.8" - All international buyers are responsible for all tax, duties and/or customs fees.