We know that a multi-serial port card is a device that can allocate multiple serial ports for a terminal connection. Each terminal can communicate with the host through it. Using a multi-user card is the most convenient and simple solution to expand the number of computer peripheral devices. It allows the computer to easily expand the serial port or parallel port, so it is also called a serial and parallel port expansion card.

(PRUnderground) January 8th, 2024

We know that a multi-serial port card is a device that can allocate multiple serial ports for a terminal connection. Each terminal can communicate with the host through it. Using a multi-user card is the most convenient and simple solution to expand the number of computer peripheral devices. It allows the computer to easily expand the serial port or parallel port, so it is also called a serial and parallel port expansion card.

Many integrated industrial control computers have only one serial port or no serial port at all, or only 1-2 interfaces, which cannot meet the needs of on-site systems. Multi-port cards can be used to expand multiple ports to connect serial mice, IC card readers, etc.

Types of multi-serial cards

There are two types of multi-serial cards, one is PCI interface and the other is PCI-E interface. They are generally distributed on computer motherboards and have single or multiple slots. Multi-serial cards are widely used in banking, finance, and securities, In fields such as telecommunications and industrial control, it is an important hardware component of computer multi-user communication control systems. Some people may not only ask: What is the difference between these two types?

First of all, the two expansion slots have different transfer rates. The maximum data transfer rate of the PCI slot is 133MB/sec (32-bit) and 266MB/sec (64-bit), while the PCI-E slot can currently reach a maximum of more than 10GB/s.

Secondly, the specifications are different. The PCI slot has only one specification, while the PCI-E slot has 7 specifications of X1 (250MB/sec), X2, X4, X8, X12, X16 and X32 channels.

Finally, the bus types are different. The PCI slot is an expansion slot based on the PCI local bus, while the PCI-E slot is the latest bus and interface standard. Its original name is “3GIO”, which was proposed by Intel. Intel means that it represents the next generation of I/O interface standards. It was renamed “PCI-Express” after being certified and released by PCI-SIG (PCI Special Interest Group). This new standard will completely replace the current PCI and AGP, and ultimately achieve the unification of bus standards.

STC has been focusing on the research and development, production, and sales of multi-serial cards for 17 years. As the world’s leading industrial Internet solution provider, STC’s PCI and PCIe multi-serial cards have the characteristics of strong versatility, high stability, and good security. The products are widely used in the field of industrial automation. Has been widely used. Therefore, our customers and friends must keep their eyes open when choosing products, so that they can buy satisfactory products.

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About Shenzhen STC Electronic Co., Ltd

STC-CABLE is an industry-leading manufacturer of high-performance cabling and connectivity solutions. Founded in 2008, STC provides end-to-end connectivity solutions serving a variety of markets–including corporate, digital signage, education, healthcare, home theater, and hospitality.

As a professional cable assembly factory, STC brings a complete portfolio of products and solutions including USB 2.0 Cables, USB 3.0 Cables, USB C Cables, Drive Cables, Network Cables & Adapters, Audio & Video Cables, Serial & Parallel Cables, Audio-Video Products, Computer power Cables internal and so on.

Leo Zhang
Sales Manager
leo@stccable.com
Tel: (86) 0755 2321 4701
(86) 134 2285 3610
www.stc-cable.com
STC Electronic (Hong Kong) Co., Limited
Shenzhen STC Electronic Co., LTD

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