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PCI Express PCIe to 4 Port RS232 DB9 Serial Card MosChip MCS9904

SKU: SY-PEX-4S  |  Brand / Compatible with: MODDIY
PCI-Express PCIe to 4 Port RS-232 DB9 Serial Card (MosChip MCS9904)
  • PCI-Express PCIe to 4 Port RS-232 DB9 Serial Card (MosChip MCS9904)
  • PCI-Express PCIe to 4 Port RS-232 DB9 Serial Card (MosChip MCS9904)
  • PCI-Express PCIe to 4 Port RS-232 DB9 Serial Card (MosChip MCS9904)
  • PCI-Express PCIe to 4 Port RS-232 DB9 Serial Card (MosChip MCS9904)
  • PCI-Express PCIe to 4 Port RS-232 DB9 Serial Card (MosChip MCS9904)
$59.99
Availability:
In Stock
(Usually ships within 24 hours)

Product Description

PCI Express to Serial Port Card (4 x Serial Ports)

Features

  • Fully compliant with PCI Express Base Specification, Revision 1.0a
  • PCIe Multi Function Peripheral controller with x1 Lane Interface
  • Support for D1, D2, D3hot and D3cold
  • Support PCIe Power Management

Specifications

  • 16C450/550/Extended 550 compatible UARTs
  • Supports RS232, RS485 & RS422 modes (need a RS232 to RS485/RS422 Adaptor)
  • Bi-directional speeds from 50 bps to 16Mbps/Port
  • Full Serial Modem Control
  • Supports Hardware, Software flow control
  • 5, 6, 7, 8 and 9-bit Serial format Support
  • Even, Odd, None, Space & Mark parity supported
  • Custom BAUD Rates supported with external clock or by programming internal PLL
  • On Chip 256 Byte depth FIFOs in Transmit, Receive path of each Serial Port
  • Supports remote wakeup and power management features
  • Serial Port transceiver shutdown support
  • Support slow IrDA on all Serial Ports

OS Supported

  • Windows 32bit 2000/XP/2003 Sever/Vista and 64bit XP/2003 Server/Vista 
  • Linux Kernel 2.6.11 & above
  • Mac 10.4 & above

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Product Reviews

  1. Abhishek S

    The website is amazing

    20 Jun 2025

  2. Henrik J

    First time I shopped from you. It remains to be seen how the delivery to Sweden goes. Update: Got everything, delivery went really smooth.

    19 Jun 2025

  3. John T

    Working well, Products as adverticed. Delivery Good.

    19 Jun 2025

  4. HUGO

    HOPING TO GET THE CABLE SOON

    18 Jun 2025

  5. A Reviewer

    kinda expensive for what you get and long delivery

    18 Jun 2025

  6. John

    You guys are the best in the business! I will always buy your products as long as you keep up the quality and love of the craft I've seen so far! On the actual delivery, FedEx delivery in Northern Sweden is an absolute farse. They use two sub-contractors and the ones actually delivering the package literally looked me in the eye as he drove by before I got a notification that they couldn't deliver that day. When I called the first sub-contractor to FedEx to put pressure on the delivery guy, he arrived a few minutes later and said he didn't even have my package in the car when he drove past (and reported he couldn't deliver because "I was unreachable"). FedEx use Lastbilsstation.se as their main subcontractor, who in turn use JetPak. JetPak is absolutely horrid. My suggestion for delivery in the Scandinavian countries would be PostNord, they suck, but not as bad. Regardless, I will still buy products from ModDIY as there simply isn't a company with better products, customer service (shoutout to Carrie, absolute legend!), and love of the craft. Next time though, I'll ensure that what I order is less urgent so the FedEx shenanigans won't affect me as much. 10/5 stars for ModDIY 0,5/5 stars for the delivery

    18 Jun 2025

  7. Simon H

    excellent service

    17 Jun 2025

  8. Rolando M

    website feels nostalgic but very responsive and all the information that I needed to know is included in the product page. Navigation was a breeze.

    17 Jun 2025

  9. Jostin

    I Feel really happy to find a free shipping from US to Spain,

    17 Jun 2025

  10. Polina

    a good site is very convenient to look for, especially support 24 hours will answer. I recommend.

    17 Jun 2025