ZTE is not a foreign brand in the modem product. MF 672 is one of the GSM modem that supports GPRS / EDGE and UMTS at 2100 MHz frequency.
This modem is equipped with a microSD slot that can use a maximum of 4GB memory. Speed gained from this modem is different, depending on signal quality, and service providers.
ZTE MF-627 UMTS Specifications:
Network : GSM, GPRS, UMTS
band : GSM 900/1800 Mhz, Umts 2100 Mhz
PC Connectivity : USB 2.0 Standard
Memory Slot : micoSD max 4Gb
Driver supported : Windows2000, XP, Vista, Seven, Mac OS
Software version BD_3GHAP673A4V1.0.0B02, BL80 (Windows 7), R81 (Mac)
Antenna : Internal