Note: 100% brand new (accessory inside is refurbish cd drive.) * No external power adapter required,so you can read CD-ROM, CD-R and CD-RW media in a completely mobile environment * USB connectivity also offers easy installation to desktop and notebook computers,USB Portable CD-ROM Drive is built to travel easily and maximize desk space * Compatible model:Dell Inspiron i1764-6075PPK 1764 17.3-Inch Laptop,Dell Inspiron 1525 Pink Laptop,DELL NOTEBOOK STUDIO 17 laptop * Win 98SE/ME/2000/XP/Vista compatible,Size: 160 x 137 x 17.5mm,USB cable : about 60cm long,USB power cable: about 60cm long