Main Features:<br />The product structure compact? light? easy to carry<br />No noise? no pollution? high security? long service life<br />USB powered? more convenient<br />Fully compatible USB1.1<br />Compatible with PC and Macintosh <br /><br />Specifications:<br />Power: 5V:5W / 12V:30W<br />Rated voltage: USB5V <br />Rated frequency: 50Hz / 60Hz <br />Cooling temperture: 10-20 Centigrade below ambient temperature<br />Heating temperture: 50 ＼ 10 Centigrade<br /><br />    Specifications<br />Specification<br />  Product weight   : 0.270 kg                                                  <br />                        Package weight   : 0.370 kg                                                  <br />                        Product size (L x W x H)  : 10.5 x 10.5 x 4.3 cm / 4.13 x 4.13 x 1.69 inches                                                  <br />                        Package size (L x W x H)  : 8 x 12.5 x 12.5 cm / 3.14 x 4.91 x 4.91 inches                                                  <br />                        Package Contents: 1 x Mini USB PC Refrigerator? 1 x English User Manual                                                 <br /><br /><br /><br />                                                <br />