We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green PCI card with metal bracket and single DR44 female connector

UOTEK

UOTEK UT-752E 2-Port RS232 PCI Serial Card

SKU CH-14D2-WF9MK

Adds two RS-232 serial ports via a 32-bit universal PCI slot with 600 W surge protection and ±15 kV ESD protection

  • Connectors1 DR44 female
  • InterfacePCI
  • Temperature-40~85°C
  • Adds two RS-232 ports via a single 32-bit universal PCI slot
  • Each port delivers up to 921.6 Kbps transmission rate
  • 600 W surge and ±15 KV ESD protection per port
  • Operates reliably from -40 °C to 85 °C
  • Supports Windows 98 through 8.1, DOS and Linux 2.4/2.6

Industrial Two-Port Serial Card

The UOTEK UT-752E adds two RS-232 ports to a 32-bit universal PCI slot via a single DR44 female connector. It targets industrial automation, point-of-sale terminals and ATMs that still rely on legacy serial equipment such as modems, printers or scanners.

PCI Bus and Speed Constraints

The card operates on either 3.3V or 5V PCI buses and supports data rates from 300bps up to 921.6Kbps. Flow control is limited to RTS/CTS and XON/XOFF, and the interface offers no hardware checksum beyond selectable parity options.

Surge-Protected Build for Harsh Environments

Each port includes 600W surge protection and ±15KV electrostatic protection for reliable operation in electrically noisy settings. The operating temperature range spans -40°C to 85°C, and the single DR44 connector requires a breakout cable to reach both DB9 endpoints.

Highlights

  • Adds two RS-232 ports via a single 32-bit universal PCI slot
  • Each port delivers up to 921.6 Kbps transmission rate
  • 600 W surge and ±15 KV ESD protection per port
  • Operates reliably from -40 °C to 85 °C
  • Supports Windows 98 through 8.1, DOS and Linux 2.4/2.6

Specifications

BrandUOTEK
ModelUT-752E
Connectors1 DR44 female
InterfacePCI
Temperature-40~85°C

Questions about this item

Should I choose the DR44 cable that splits into two DB9 ports or a different breakout for my two serial devices?

The card has one DR44 female connector carrying both RS-232 ports; you need a DR44-to-dual-DB9 cable or adapter to separate the two ports for standard serial devices.

What does the 921.6 Kbps top rate mean when I plug this into a 32-bit PCI slot?

Each port can reach 921.6 Kbps in practice; the 32-bit universal PCI bus provides far more bandwidth than the serial links require, so the headline rate is achievable.

Does the 32-bit universal PCI interface limit me to 3.3 V or 5 V slots?

The card works in both 3.3 V and 5 V PCI slots, so it fits any universal PCI motherboard without voltage concerns.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.