Dell RS-232 Serial Port I/O Daughterboard Module – Adds Rear COM Port | Compatible with OptiPlex 3060–7070 Micro/SFF/Tower | CN-0DK

Add legacy connectivity to your Dell OptiPlex desktop with this genuine Dell Serial Port I/O Daughterboard Module. It provides a reliable RS-232 COM port on the rear panel — ideal for barcode scanners, industrial controllers, networking equipment, and POS hardware that still require serial communication.

Key Features

• Adds 1 × RS-232 (COM) serial port to the rear of the system

• Fully compatible, genuine Dell part

• Quick installation - uses existing internal I/O header

• Supports commercial and industrial applications

Compatibility

Compatible with the following Dell OptiPlex platforms:

• OptiPlex 3060 – Micro / Small Form Factor / Tower

• OptiPlex 3070 – Micro / Small Form Factor / Tower

• OptiPlex 5060 – Micro / Small Form Factor / Tower

• OptiPlex 5070 – Micro / Small Form Factor / Tower

• OptiPlex 7060 – Micro / Small Form Factor / Tower

• OptiPlex 7070 – Micro / Small Form Factor / Tower

Compatible Dell Part Numbers

• CN-0DK**** (various build codes)

• DKJHY

• C4PDJ

• T5HNR / 0T5HNR

What’s Included

• Dell Serial I/O Daughterboard Module

• Rear expansion bracket (as pictured)

• Internal connection cable (for motherboard header)