Shenzhen Trankoo Technology Co., Ltd  is one brandnew foreign-oriented manufacturer and developer of computer peripherals and consumer electronics products. We can provide a rang of qualified products such as USB Rechargeable Battery,Emergency Battery Charger for Mobile Phones, Diagnose/Debug Card and Data Recovery Card,Flash Memory Card,USB Flash Disk,USB HUB and Memory Card Reader.We sincerely welcome OEM/ODM orders from all over the world.