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SIIG’s CyberSerial Dual+DOS serial adapter is an excellent solution for you to connect more serial-based devices to your system. It is designed to add two 9-pin (DB9) serial ports to your current PCI-enabled desktop computer. This 2-port serial adapter card comes with two high-speed 16550 UART DB9 serial ports supporting data transfer rates of up to 230Kb/s. The serial ports can work as either standard DB9 RS232 ports, or can be configured for 5V /12V power output for serial devices that require power such as handheld scanners, table scanners, and POS displays.
The CyberSerial Dual+DOS adapter supports IRQ sharing to reduce IRQ conflicts, built-in 32-byte FIFO buffers to dramatically increase data transmit/receive speed especially under Windows multitasking environment, and PME (Power Management Event) that allows device to request a change in system power state (wake up system). Additionally, this serial adapter features a 4-layer PCB (with separate layers for data and ground) to greatly reduce signal noise and loss, and an enhanced bend-resistant bracket to provide a more secure connection to the system.
It is the fast and reliable solution to connect a wide variety of serial port devices such as 56K V.90 external modems, ISDN terminal adapters, PDAs, digital cameras, label printers and more. SIIG’s CyberSerial Dual+DOS adapter is powered by SIIG CyberPro chipset, conforms to PCI v2.2 universal card standard, is also FCC Class B (DoC) & CE regulatory approved and RoHS-compliant. The CyberSerial Dual+DOS is fully compatible with a wide variety of Windows operating systems.
Pros: drivers for many OS's including DOS
Other Thoughts: Plugged it in and it works. Nice they have DOS drivers, they seem to work fine under FreeDOS.
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Pros: This 2-port serial card is Vista compatible, and works without a hitch. We have an older wrist-GPS that requires a serial interface; a true serial card is much more reliable than any of the usb --> serial converters that rely on potentially flaky drivers.
Cons: None that I can think of.
Other Thoughts: If you need serial ports in a newer PC, even with Vista, this is a great choice if you have a PCI slot to spare.
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