Devices with MAC addresses that start with 00-21-00 were manufactured by Gemtek Technology Co., Ltd.

Device Manufacturer
Gemtek Technology Co., Ltd.

Manufacturer Location
No.1 Jen Ai Road, Hsinchu Industrial Park,
Hukou, Hsinchu 303

Estimated Devices using 00-21-00
16,256,250

Estimated Total Devices From Mfg
195,075,000