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
Black 6 ft serial cable with DB9 female to DB25 male gold connectors

Tripp Lite

Tripp Lite P456-006 6 ft Null Modem DB9F to DB25M Serial Cable

SKU CH-HHAM-SRQGV MPN P456-006

Six-foot null modem cable links DB9 and DB25 serial ports with foil shielding and gold-plated connectors

  • TypeSerial (COM)
  • ColorBlack
  • Length6 ft.
  • Connector Number2
  • Connector DetailDB9 Female to DB25 Male
  • Terminal GenderFemale to Male
  • Null modem link connects two serial devices directly
  • Foil shielding blocks EMI and RFI interference
  • Gold-plated contacts maintain reliable signal conductivity
  • DB9 female to DB25 male fits legacy ports
  • Six-foot length gives flexible placement options

Six-foot null-modem link

This six-foot serial cable carries a DB9 female connector on one end and a DB25 male connector on the other, wired for null-modem communication between two DTE devices. Gold-plated contacts and foil shielding protect the signal from electromagnetic interference. The moulded strain reliefs add durability for repeated connection cycles. It suits technicians linking legacy industrial gear, point-of-sale terminals or older networking equipment.

Use cases and limits

The cable serves installers who need a direct DB9-to-DB25 cross-over without a separate adapter block. It will not help anyone whose ports are both DB9 or both DB25, nor users who require a straight-through pin-out for modem-to-DTE links. Buyers needing longer runs or a different gender combination should look at other cable assemblies.

Deciding specification

The defining detail is the DB9 female to DB25 male null-modem pin-out, which determines whether the cable matches the two ports you must join. If your devices present any other connector pairing or require straight-through wiring, this part will not fit the application.

Highlights

  • Null modem link connects two serial devices directly
  • Foil shielding blocks EMI and RFI interference
  • Gold-plated contacts maintain reliable signal conductivity
  • DB9 female to DB25 male fits legacy ports
  • Six-foot length gives flexible placement options

Specifications

BrandTripp Lite
ModelP456-006
TypeSerial (COM)
ColorBlack
Length6 ft.
Connector Number2
Connector DetailDB9 Female to DB25 Male
Terminal GenderFemale to Male
SpecificationsConnector A: DB9 Female
Connector B: DB25 Male
FeaturesSuperior molded cables with foil-shielding for maximum EMI/RFI protection
Gold-plated connectors provide superior conductivity
Null modem cables connect two serial devices that require a null modem configuration

Questions about this item

Should I choose the 6 ft DB9F-to-DB25M cable or a different length for my null modem link?

The 6 ft length suits most desk-to-device runs; select a longer cable only if the two serial ports sit farther apart.

What does the null modem wiring actually do when I plug this cable into two serial ports?

It crosses transmit and receive lines so two DTE devices such as PCs or terminals can communicate directly without a modem.

How does the DB9 female to DB25 male connector pair limit the devices I can connect?

One end fits a 9-pin serial port, the other fits a 25-pin serial port; both ports must use the matching gender for a secure connection.

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.