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Green printed circuit board with a silver DB25 port and full-height metal bracket

SMUGDESK

SMUGDESK PCIe to DB25 LPT Parallel Card WCH382L

SKU CH-0DTW-A2T2J

Adds a hardware IEEE 1284 parallel port via PCIe x1 for legacy printers, CNC machines and industrial instruments using the WCH382L chipset with FIFO buffer

  • Adds a true hardware parallel port via WCH382L chipset
  • Supports SPP PS2 EPP ECP modes under IEEE 1284
  • Fits PCIe x1 x4 x8 x16 slots with full-height bracket
  • Onboard FIFO buffer prevents data dropout during heavy use
  • Works with Windows Linux DOS for industrial equipment

Industrial parallel card for legacy equipment

This PCIe x1 expansion card adds a genuine DB25 parallel port to modern desktop PCs using the WCH382L chipset. It targets workshops and IT teams that must keep dot-matrix printers, CNC controllers, PLCs or test instruments running on current hardware. The board fits any PCIe x1, x4, x8 or x16 slot and includes a full-height metal bracket for secure mounting.

Hardware IEEE 1284 support replaces USB adapters

Unlike USB-to-parallel cables that rely on virtual COM ports, this card provides true hardware parallel communication with SPP, PS2, EPP and ECP modes. The onboard FIFO buffer prevents data dropout during long print jobs or continuous CNC streams. Driver support spans Windows, Linux and DOS, so the same card works across mixed industrial operating environments.

One DB25 port handles single-device workflows

The card supplies a single IEEE 1284 compliant parallel connection, enough for one printer, CNC link or instrument at a time. Systems needing simultaneous multi-port output or higher throughput than the 1284 standard allows will require additional cards or a different topology.

Highlights

  • Adds a true hardware parallel port via WCH382L chipset
  • Supports SPP PS2 EPP ECP modes under IEEE 1284
  • Fits PCIe x1 x4 x8 x16 slots with full-height bracket
  • Onboard FIFO buffer prevents data dropout during heavy use
  • Works with Windows Linux DOS for industrial equipment

Specifications

No published specifications for this item yet.

Questions about this item

Will the WCH382L chipset on this parallel card ever need a firmware update or replacement?

The WCH382L chipset is a fixed-function hardware controller with no user-serviceable firmware; the card itself requires no scheduled maintenance, only occasional dust removal from the slot contacts.

What throughput limit appears first when the card runs SPP, PS2, EPP and ECP modes continuously?

The onboard FIFO buffer manages burst traffic, but sustained heavy-duty streams are ultimately constrained by the IEEE 1284 parallel bus signalling rate of the connected industrial device.

How much heat and power does the card add when it stays active all day in a PCIe x1 slot?

The card draws minimal power from the PCIe bus and runs passively with no fan; its full-height metal bracket acts as a small heatsink, so case airflow handles the negligible thermal load.

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