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Grey 10 ft serial null modem cable with two DB9 female connectors

STARTECH

STARTECH SCNM9FF 10 ft serial cable DB9 female to female

SKU CH-KRQ8-J3YMN MPN SCNM9FF

A 10 ft null modem cable with two DB9 female connectors for serial file transfer or printer links

  • Connector count2
  • Connector detailsConnector A: 1 - DB-9 (9 pin; D-Sub) Female Connector B: 1 -
  • Connector genderFemale to Female
  • Product typeCable Connectors
  • Product colorGray
  • Overall length10 ft (3.05 m)

Length 10 ft.

Style Null Modem Cable Female to Female

  • 10 ft length reaches equipment across the desk
  • Null-modem wiring enables direct PC-to-PC file transfer
  • Two DB9 female ports fit legacy serial devices
  • Grey jacket identifies the cable in busy racks
  • Lifetime warranty backs long-term reliability

Connectivity for legacy serial equipment

This ten-foot null-modem cable carries two DB9 female connectors wired for direct RS232 communication. It links a serial printer to a nine-pin port or enables PC-to-PC file transfer without a modem. The cross-wired pinout handles the transmit and receive swap internally.

Passive operation with no external power

The cable draws no power and generates no heat or noise because it contains no active electronics. Signal integrity relies on the short 10 ft length and standard RS232 voltage levels provided by the host ports. Lifetime warranty coverage applies to the assembly.

Fits tight rear-panel spaces while freeing USB ports

The moulded DB9 hoods sit close to the chassis, leaving adjacent expansion slots unobstructed. Using this link keeps USB headers available for peripherals that need them. Builds that lack a native serial header gain a reliable RS232 path without adding an expansion card.

How it compares

Measured against everything we stock in RS-232 Serial Cables, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 83% of the 93 comparable items (median $21.99).

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Specifications

Product
Brand nameStarTech.com
Model nameSCNM9FF
Product typeCable Connectors
Product colorGray
Ports & slots
Connector count2
Connector detailsConnector A: 1 - DB-9 (9 pin; D-Sub) Female
Connector B: 1 - DB-9 (9 pin; D-Sub) Female
Connector genderFemale to Female
Size & build
Overall length10 ft (3.05 m)
Shipping weight0.15 kg
Package size180 × 121 × 23 mm

Other versions of this model

5 more in the same range

Questions about this item

How do I install the StarTech SCNM9FF 10 ft null modem cable and what is the common mistake?

Connect each DB9 female end to the matching 9-pin serial ports on both devices; the step people miss is confirming both ports are DTE so the internal cross-wiring swaps transmit and receive correctly.

What maintenance or replacement will the SCNM9FF cable need over time?

The cable has no moving parts or consumables; inspect the DB9 shells and thumbscrews for bent pins or corrosion and replace the assembly only if the molded strain relief splits or signal errors appear.

What limit appears first on the SCNM9FF during sustained RS232 file transfers?

The 10 ft length is well within the RS232 distance guideline, so the practical ceiling is the 232 kbps signalling rate of the connected UARTs rather than cable attenuation.

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