Shenzhou notebook wireless network cards are mainly used in notebooks and PDAs (handheld computers), and some are also used in desktop computers. Therefore, its interfaces also have a variety of specifications. Common interfaces mainly include PCMCIA interface, USB interface, CF interface, etc.
PCMCIA interface
This type of interface Wireless network cards are generally dedicated to mobile devices such as laptops. They are limited by the space of laptops and cannot be as large as PCI interface network cards. The PCMCIA bus is divided into two categories, one is the 16-bit PCMCIA, and the other is the 32-bit CardBus.
CardBus is a new high-performance PC Card bus interface standard for notebook computers, just like the PCI bus widely used in desktop computers. Compared with the original PC card standard, this bus standard has the following advantages: first, 32-bit data transmission and 33MHz operation. The maximum throughput of CardBus Fast Ethernet PC cards is close to 90 Mbps, while the 16-bit Fast Ethernet PC cards can only achieve 20-30 Mbps. Second, bus autonomy. The PC card can be independent of the main CPU and directly exchange data with the computer memory, so that the CPU can handle other tasks. Third, 3.3V power supply, low power consumption. It improves the life of the battery, reduces the heat diffusion inside the computer, and enhances the reliability of the system. Fourth, it is backward compatible with 16-bit PC Cards. PC Cards for older Ethernet and Modem devices can still be used in CardBus slots.
USB interface
USB (Universal Serial Bus, Universal Serial Bus Interface) has a transmission rate that is much greater than that of traditional parallel and serial ports. , the device is easy to install and supports hot swapping. Once the USB device is connected, it can be immediately recognized by the computer, any required drivers can be installed, and it can be put into use immediately without restarting the system. When a device is no longer needed, it can be unplugged at any time and another new device can be plugged into the port. Then, the new device can also be confirmed immediately and start working immediately, so it is becoming more and more popular. Loved by manufacturers and users.
CF interface
CF (Compact Flash) type wireless network card is mainly used in devices such as PDAs. CF cards are manufactured according to ATA standards, but its interface is 50 pins instead of 68 pins. It is divided into two rows, each row has 25 pins. pins. CF cards are divided into two categories: Type I and Type II. The specifications and features of the two are basically the same. The only difference between the two models is the thickness of the card. The CF card is not a pin-type interface like a hard disk but a 50-pin (1.27 mm) female interface, so it is not easily damaged. This design is similar to the PCMCIA interface.