pci-e card 4 serial ports

pci-e card 4 serial ports

Add four RS-232 serial ports to any computer using a single PCI Express expansion slot. The StarTech.com PEX4S553B is a native-chip PCIe serial card that delivers reliable connectivity for legacy serial devices, reducing CPU load by up to 48% compared to conventional bridge-chip serial cards. It includes a 1-to-4 multi-connector cable, allowing you to install four ports from one low-profile slot.

This multiport serial adapter comes with both standard and low-profile/half-height brackets to fit full-size or small form factor computers. It supports a wide range of operating systems, including Windows, Linux, and Mac OS, making it a versatile solution for connecting serial peripherals such as POS terminals, industrial equipment, and networking devices.

Backed by a native single-chip design (ASIX Moschip MCS9904CV-AA), the card provides 256-byte FIFO buffers on both transmit and receive paths for each port, hardware and software flow control, and data transfer rates up to 250 Kbps per port. It is compliant with PCI Express specification revision 1.0a and operates on a single-lane (x1) PCIe interface with data transfer speeds up to 2.5 Gbps.

Características principales

• Adds 4 RS-232 serial ports via a single PCI Express x1 slot
• Native single-chip design reduces CPU load by up to 48% compared to bridge-chip cards
• Includes both standard and low-profile/half-height mounting brackets
• 256-byte FIFO buffers on transmit and receive paths for each port
• Supports data transfer rates up to 250 Kbps per port
• Hardware and software flow control, including automatic out-of-band flow control using CTS/RTS and DSR/DTR
• Compatible with PCI Express specification revision 1.0a

Especificaciones

Preguntas frecuentes

What is included with this card?

The package includes the PCIe serial card, a 1-to-4 multi-connector serial cable, standard and low-profile mounting brackets, drivers, and a user manual.

Which operating systems are supported?

It supports Windows (including server editions), Linux, and Mac OS X from 10.3 Panther to 10.10 Yosemite, as well as DOS and Windows Embedded variants.

Does it require a specific PCIe slot?

It uses a single-lane PCI Express (x1) slot and is compliant with PCI Express specification revision 1.0a.

What is the maximum data transfer rate per port?

Each port supports data transfer rates up to 250 Kbps.

Es para ti si...

• You need to add four RS-232 serial ports to a computer with a free PCIe slot.
• You want a native-chip solution that reduces CPU load compared to bridge-chip cards.
• You require both standard and low-profile brackets for different computer form factors.
• You need broad OS compatibility, including Windows, Linux, and Mac OS.