Zte Model Z812 Manual3/20/2021
The most prevalent is UMTS, which is based on WCDMA (the terms WCDMA and UMTS are often used interchangeably).This is a 2.75G technology further developed from the 2G and 2.5G technologies.Its data transmission speed is higher than that of GPRS and is closer to 3G technology.Wi-Fi is a short-range wireless communication technology adopting the 802.11 wireless network standard.
Most of the notebook computers, mobile phones or mobile Internet devices nowadays are able to support Wi-Fi wireless connection. The transmission speed of Wi-Fi can be up to 54 Mbps, while its communication range can reach 305 meters with high stability and reliability. At present, many coffee shops, shopping malls, hotels and airports offer chargeable or free-of-charge Wi-Fi wireless broadband. The USB specification limits maximum cable lengths to 5m for high speed USB devices and 3m to low speed devices USB. The internal cables prior to USB 3 were for power, ground and a pair for differential data. HDMI is a digital interface for transmitting audio and video data in a single cable. It is supported by most HDTVs and related components, such as DVD and Blu-ray players, cable boxes, and video game systems. ![]()
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