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Four 16550 UART Serial Ports Dual Profile PCI Board by SIIG INC.

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Brand: SIIG

This is a PCI expansion card designed to add four serial ports to a computer, allowing for the connection of multiple serial devices such as modems, industrial equipment, or legacy peripherals. It uses the 16550 UART chip, which provides efficient data transmission and supports higher baud rates compared to older UART models. The dual profile design ensures compatibility with both low-profile and standard-height PCI slots, making it suitable for a wide range of desktop computers. The card is ideal for users who need to connect multiple serial devices without the need for external USB-to-serial adapters.

The board features four independent serial ports, each capable of operating at standard baud rates up to 115.2 kbps. It supports standard RS-232 communication, which is commonly used in industrial and embedded systems. The 16550 UART chip includes a 16-byte FIFO buffer, reducing CPU overhead and improving data transfer reliability. This makes it a reliable choice for applications requiring stable and continuous serial communication.

Installation requires an available PCI slot on the motherboard and proper power supply. The card does not require any additional drivers for basic functionality, as it is compatible with most operating systems including Windows, Linux, and macOS. Users should ensure that their system has the necessary BIOS settings enabled for PCI device detection. The included documentation provides setup instructions and configuration details for optimal performance.

The compact design of the card allows it to fit into most desktop cases without causing physical interference. It is built with durable materials to withstand typical desktop environments. The card’s layout includes clearly labeled ports for easy identification and connection of devices. Its low-profile form factor ensures compatibility with modern mini-ITX or small form factor cases that have limited vertical space.

Brand: SIIG INC.
Model: JJ-P04621-S7
Specifications: 4 x 16550 UART serial ports, RS-232 standard, dual profile PCI design
Features: 16-byte FIFO buffer, compatible with Windows, Linux, macOS, low-profile design
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