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
Grey serial cable with DB9 female and DB25 male connectors, ten feet long

Micro Connectors

Micro Connectors AT Modem Serial Cable DB9 Female to DB25 Male 10 ft

SKU CH-QVVK-M4CKF

Connects a PC serial port to an external modem with a fully moulded 10 ft cable and thumbscrew hoods

  • Connector A1 x 9-pin DB-9 Female Serial
  • Connector B1 x 25-pin DB-25 Male Serial
  • Length10 ft.
  • Connects PC to external modem via DB9 serial port
  • Fully molded construction protects internal wiring
  • 10 ft length provides flexible placement options
  • Slotted thumbscrews enable tool-free secure connections
  • Industrial strength hoods withstand repeated connect-disconnect cycles

10 ft AT Modem Serial Cable DB9 Female to DB25 Male

This 10 ft serial cable connects a PC computer to an external modem using a DB9 female connector on one end and a DB25 male connector on the other. The fully moulded construction with slotted thumbscrews provides secure, long lasting data integrity across modem baud rates. It is suited for legacy serial communication setups in industrial or office environments.

Upgrades from worn or missing serial modem links

The cable replaces damaged or lost AT modem cables that carry serial signals between a DB9 port and a DB25 modem interface. The jump is worth it when an existing lead shows intermittent connectivity, broken thumbscrews or insulation wear that corrupts data at higher baud rates. It restores a reliable physical link without changing the serial protocol or port configuration.

Fits builds with DB9 serial ports

The assembly requires a free 9 pin DB9 serial port on the host system and a 25 pin DB25 serial port on the external modem. The 10 ft length frees placement options for the modem relative to the computer while the moulded hoods and easy grip thumbscrews simplify installation in tight rack or desk spaces. No additional adapters or drivers are needed for the serial connection.

Highlights

  • Connects PC to external modem via DB9 serial port
  • Fully molded construction protects internal wiring
  • 10 ft length provides flexible placement options
  • Slotted thumbscrews enable tool-free secure connections
  • Industrial strength hoods withstand repeated connect-disconnect cycles

Specifications

BrandMicro Connectors
Connector A1 x 9-pin DB-9 Female Serial
Connector B1 x 25-pin DB-25 Male Serial
Length10 ft.

Questions about this item

What clearance do the slotted thumbscrew hoods need behind the DB9 female and DB25 male ports?

The fully moulded hoods have long, easy-grip slotted thumbscrews; allow enough depth for the hood body plus the screw length so the cable seats without strain.

Which connector should be seated first when linking a PC serial port to an external modem?

Attach the DB9 female end to the computer's 9-pin serial port and tighten the thumbscrews, then connect the DB25 male end to the modem and secure its thumbscrews.

When should this 10 ft serial modem cable be replaced?

Replace the cable if the moulded hoods crack, the thumbscrews strip, pins bend or corrosion appears, or if data errors persist after reseating both ends.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

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