This product is a wireless network card module with RTL8188CUS chip, low power consumption, high linear output power, and 150M USB interface. Comply with IEEE802.11n standard, compatible with IEEE802.11g, IEEE802.11b standard, provide USB2.0 interface, compatible with USB1.1/2.0. Support the latest 64/128 bit data encryption; support WPA-/WPA2-, WPA/WPA2 security mechanism. Using 11N transmission technology, up to 150Mbps wireless transmission rate. It is 10 times that of ordinary 11B products. It has a built-in omnidirectional ceramic antenna, and an external antenna can be used to make the transmission distance longer, and it can communicate with other wireless devices that meet this standard. It can adapt to different working environments, so that desktop computers, notebook computers, tablet computers, network cameras, set-top boxes, GPS and other devices that need to achieve wireless networking can easily access the wireless network. This module is a compatible design with built-in antenna and external antenna.Customers can directly use the ceramic antenna in the board when using it, or through an external cable with higher gain. This WIFI module is suitable for: desktop computers, notebook computers, netbooks, MID tablets, digital photo frames, network TV set-top boxes, network cameras, network high-definition players, Android network players, Android smart TV boxes, etc. Support for Windows2000/XP/Vista/ 7/for LINUX/for WIN CE/for OS/Android and other operating systems. Note:This module can choose 5V power supply. Features: Main chip: Realtek RTL8188CUS Supported protocols and standards: IEEE 802.11n/b/g, 802.3, 802.3u Frequency range: 2.4-2.4835 GHz ISM Band Spread spectrum technology: DSSS (Direct Sequence Spread Spectrum) Working mode: centralized control (Infrastructure), peer-to-peer (Ad-Hoc) Transmission rate: 1,2,5.5,6,11,12,18,22,24,30,36,48,54,60,90,120 and maximum 150Mbps Working voltage: DC 3.3V or 5V (DC 3.3V 5V) Working current: 95-140mA Interface type: USB2.0 Modulation method: OFDM/DBPSK/DQPSK/ Number of working channels: 14 Transmitting power: Less than 13dBm@11n, Less than 18dBm@11b, Less than 14dBm@11g Receiving sensitivity: 11Mbps: -86dBm@8% 54Mbps: -73dBm@10% 130Mbps: -66dBm@10% Antenna connection mode: built-in ceramic antenna or external antenna RF input impedance: 50 Transmission distance: indoor up to 100 meters, outdoor up to 300 meters (different depending on the environment) Module size: 27.0x12.0x2.0 mm(L x W x H) Process: Lead-free Due to different product batches, the appearance , which does not affect the use. Colour:As Shown Material:PC Package Contents: 1 * 5V With Ceramic Antenna RTL8188CUS Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.