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Green PCIe x1 card with four silver DB9 ports and a metal bracket

Vszerda

Vszerda PCIe 4-Port DB9 RS232 COM Serial Adapter AX99100

SKU CH-NQMJ-K277N

Adds four DB9 RS232 COM ports via a PCIe x1 slot using the AX99100 chipset

  • Adds four serial ports via a single PCIe x1 slot
  • Uses ASIX AX99100 chipset for reliable RS-232 communication
  • Standard DB9 connectors fit legacy and industrial gear
  • Low-profile bracket included for small-form-factor PCs

Four-port serial expansion for desktop PCs

This Vszerda adapter adds four DB9 RS232 COM ports through a single PCI Express x1 slot using the ASIX AX99100 chipset. It targets technicians and integrators who connect legacy industrial equipment, point-of-sale hardware or embedded consoles to modern motherboards. The low-profile bracket fits standard and small-form-factor cases alike.

Low-profile bracket and driver support included

A half-height bracket is supplied so the card installs in slim chassis without modification. Drivers for current Windows and Linux releases enable each port to operate independently at up to 232 kbps. No external power cable or additional software licences are required.

Highlights

  • Adds four serial ports via a single PCIe x1 slot
  • Uses ASIX AX99100 chipset for reliable RS-232 communication
  • Standard DB9 connectors fit legacy and industrial gear
  • Low-profile bracket included for small-form-factor PCs

Specifications

No published specifications for this item yet.

Questions about this item

Will the ASIX AX99100 chipset on this card require a firmware update or driver reinstallation after a major OS upgrade?

The ASIX AX99100 chipset uses standard serial drivers included in modern operating systems; major OS upgrades typically retain or automatically update these drivers without user action.

What throughput ceiling appears first when all four DB9 ports run at 232 kbps simultaneously?

The PCIe x1 host link provides far more bandwidth than four ports at 232 kbps, so the serial line rate itself is the first limit reached under sustained full-load traffic.

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