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Green PCIe card with two DB9 ports and low bracket

ALSEYE

ALSEYE 2 in 1 Accessory PCIe 2-Port Serial Card WCH382 Low Bracket

SKU CH-4538-8Y4VY

Adds two RS232 COM ports via PCIe x1 using a WCH382 chip with 16C550 UARTs up to 230400 bps, includes low-profile bracket and driver CD for Windows 10/11 and Linux

  • Adds two serial ports to a PC via PCIe x1 slot
  • Transfers data up to 230400 bps per port
  • Uses WCH382 chip with dual 16550 UARTs
  • Includes low-profile bracket for compact cases
  • Works with Windows 10, 11 and Linux 32/64-bit

PCIe Serial Expansion Card

The ALSEYE PCIe serial expansion card adds two industrial DB9 RS232 COM ports to a desktop computer through a single x1 PCI Express slot. It uses the WCH382 chipset with dual 16C550 UARTs and supports data rates up to 230400 bps. A low-profile bracket is included for small-form-factor chassis and driver installation is handled from the supplied CD.

Ideal for Legacy Device Users

This card suits technicians and industrial users who need to connect legacy serial equipment such as CNC controllers, barcode scanners or PLCs to modern Windows or Linux PCs. It is not for buyers who require USB or Ethernet connectivity, nor for those who need more than two serial ports without adding another card.

Dual 16C550 UART at 230400 bps

The decisive specification is the dual 16C550 UART implementation that delivers up to 230400 bps per port on a x1 PCIe interface. Verify that your motherboard has a free x1 slot and that your operating system appears in the supported list before purchase.

How it compares

Measured against everything we stock in 2-in-1 Device Accessories, at today’s prices. Recalculated every night.

Price $37.99
Cheaper than about 86% of the 7,473 comparable items (median $56.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Does my motherboard need a free PCI Express x1 slot for this WCH382 serial card?

Yes, the card is compatible with 1-Lane (x1) PCI-Express throughput and fits any available x1 or larger slot.

Will the two DB9 ports on this card work with my existing RS-232 peripherals at 230400 bps?

Each port uses a 16C550 Fast UART supporting data transfer rates up to 230400 bps, matching standard RS-232 equipment.

How can I confirm both COM ports are active after installing the driver from the CD?

Open Device Manager, expand Ports (COM & LPT), and verify two new Communications Port entries appear without error codes.

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