Style1:
<br />Specifications:
<br />Size: Approx. 15 x 14 x 1cm / 5.91 x 5.51 x 0.39inch
<br />USB Interface: 3.0
<br />USB Transmitting Rate: Up to 5Gbps
<br />Compatible OS: WindowsXP/2003/Win8/Win7/Vista/Linux/Mac10 OS
<br />Read Speed: CD-ROM 24X, CD-R/RW 24X, DVD-ROM 8X , DVD-R/RW 8X, DVD-RDL/+RDL 8X, DVD-R/+R 8X, DVD-RAM 5X
<br />Write Speed: CD-R 24X, CD-RW 16X, DVD-R/+R 8X,  DVD-RW 6X, DVD+R 8X, DVD-RDL/+RDL 6X, DVD-RAM 5X  
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<br />Style 2 :
<br />Specifications:
<br />Write speed: DVD-R, DVD+R 8X; DVD-RW 4X; CD-R 24x
<br />Read speed: DVD-ROM 8x; CD-ROM 24x
<br />Power Supply: USB power supply
<br />Color: Gold
<br />Package Weight: 364g
<br />Size: 13.8 x 13.5 x 1.8cm / 5.43 x 5.31 x 0.71inch
<br />Drive Type: External Slim Tray Type DVD-RW
<br />Support Disc Specifications: 8cm(3.15"), 12cm(4.72")
<br />Support Disc Format: DVD-ROM, DVD-R, DVD+R, DVD-RW, DVD-R DL CDA, CD-ROM, CD-R, VCD, SVCD, CD-RW
<br />Interface: USB 3.0 (Compatible with USB2.0/1.0/1.1)
<br />Compatible Operating Systems: Windows 98 SE, ME, 2000, XP, Vista, Win 7, Win 8, Win 10, Windows Server 2003, 2003 R2, 2008, 2008 R2, 2012, 2012 R2, Mac OS 8.6, Mac10 OS, 2015 27" retina iMac, Macbook Pro with OS 10.10.5, Macbook air version 10.9.5, imac with EL Capitan - os x 10.11, Surface Pro 
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<br />Package List:
<br />1 x USB 3.0 External Drive