For a list of all currently documented Realtek chipsets with specifications, see Realtek.
Connector: Female Mini-B
Form factor tags: corded (modular) adapter
WI1 chip1: Realtek RTL8187L
WI1 chip2: Realtek RTL8225
Antenna connector: RP-SMA
GSKY Wireless IEEE 802.11g USB 2.0 High-Gain Adapter
7dBi Panel Antenna
11g : 15 ± 2dBm@54Mbps, EVM<-24dB
11b : 25 ± 2dBm, EVM <35%
This device is simply a G-SKY adapter with a small panel antenna.