... newMaterial:Metal , support plastic materialItem no:MU-085 Description:Memory Chip:Samsung/Toshiba/Intel/HynixSpeed:writing speed :3-8M/s ... reading speed :12-20M/sAccessory choices:Manual ,CD drive, USB cable, lanyard, key ring, key chainOperating system:Windows XP, ... to Shenzhen Worthspark CO.,LtdShenzhen Worthspark Co.,Ltd. is USB Flash Drive and power bank developing, manufacturing and marketing ...