Supports memory card capacity: Max 32G
<br />Working voltage: DC2.7V - 3.6V
<br />Support memory card: SD+Micro SD/T-Flash
<br />Size:51.5 x 19 x 11 mm ( L x W x H ) 
<br />Color: Random color sent to you
<br />Condition: Brand New
<br />material: ABS+Metal
<br />Operating systems:Windows 2000,2003,XP,Vista,7  ,Mac 10.45 above and Linux 2.4 or above 
<br />Transmission rate: USB2.0,480Mb/s
<br />Package include:1* Card Reader for Smart Phone   (other accessory not include)
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<br />Easy to use, convenient to carry
<br />Can be used for charging connector
<br />Support Android 2.3 or above smart phones and tablet with OTG function
<br />High quality in EU and US quality standard
<br />converse : 1 inch = 2.54cm or 1cm = 0.393 inch
<br />NOTE: the product in the picture maybe larger than actual one, Please check the size before~