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StarTech.com NM9MF Null Modem Adapter DB9 Male to DB9 Female

  • Null modem adapter
  • DB-9 (M) to DB-9 (F)
  • for P/N: PCI2S232485I
  • PCI8S950LP
  • SV1115IPEXGB
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Overview
Specs
Reviews (2)
DB9 RS232 Serial Null Modem Adapter - M/F

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies

    We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.

  • Return for refund until: January 31, 2027
  • Return for replacement until: January 31, 2027
  • This item is covered by Newegg.ca's Extended Holiday Return Policy.
  • Read full return policy for details.
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The StarTech.com NM9MF is a DB9 male-to-female null modem adapter that converts a straight-through cable into a null modem cable, for users connecting serial equipment that requires a null modem connection.

Recommended For

  • IT technicians connecting two DB9 RS-232 devices that need a null-modem (crossover) connection can use this adapter to convert an existing straight-through 9-pin cable rather than replace the cable. Confirm the devices’ required pinout first.
  • Network or server administrators troubleshooting a DB9 serial console can use it when the host and console device require crossed transmit and receive lines and they already have a compatible straight-through cable.
  • PC, terminal, or legacy-device users making a direct serial connection between two DTE devices can use it to adapt an existing DB9 cable for a null-modem link, provided the devices’ connector genders and wiring requirements match.
  • Homelab and repair users who keep a straight-through DB9 cable on hand can use this small adapter when serial-console troubleshooting shows that a null-modem connection is required.

Spec Summary

AttributeValue
Best ForConverting a straight-through DB9 serial cable into a null modem connection
Connector ConfigurationDB9 male to DB9 female serial adapter
Function And CompatibilityNull modem adapter compatible with StarTech.com models PCI2S232485I, PCI8S950LP, and SV1115IPEXGB
Physical SpecificationsBlack; weight 0.08
Model IdentifiersStarTech.com NM9MF