Unused item. I bought it several years ago, but it's been stored in a desk drawer without being used. There is no warranty. ELECOM MR-A39N Series Memory Reader/Writer Supported OS External Dimensions Cable Length Product Specifications • Windows® 8.1, Windows® 8, Windows® 7 (SP1), Windows Vista® (SP2) • Mac OS X 10.6 ~ 10.6.8 / OS X 10.7 ~ 10.7.5, 10.8 ~ 10.8.3, 10.9 Width 60.0 x Depth 35.0 x Height 13.0mm Interface USB 2.0 (※ Excluding cable) Approximately 50cm (※ Excluding connector) Contents User's Manual / 1 copy, Main Unit / 1 piece