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StarTech 1m DB9 RS232 Serial Null Modem Cable, Black (SCNM9FM1MBK) | 9 pin Null Modem Cable, Cross Wired, DB-9 (M) to DB-9 (F), Male to Female

StarTech 1m DB9 RS232 Serial Null Modem Cable

Bottom line: The StarTech 1m DB9 RS232 Serial Null Modem Cable ($8.93 on Amazon as of 2026-10-06): Cross-wired null modem: direct PC-to-PC, no modem; main trade-off: no DB25 end for older 25-pin serial ports.

$8.93

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Buy on Amazon — $8.93 Compare to similar cables & connectors

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Cross-wired null modem: direct PC-to-PC, no modem
  • ✓ DB9 male-to-female, 1m length for flexible placement
  • ✓ True RS232 serial for legacy device file transfers
  • ✓ Standard 9-pin DB-9 fits vintage COM ports

Cons

  • ✗ No DB25 end for older 25-pin serial ports
  • ✗ Null modem wiring won't work for straight-through needs
  • ✗ 1m fixed length may fall short for distant setups
  • ✗ No USB-to-serial adapter for modern PCs included

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SpecPicks Verdict

SpecPicks scored StarTech 1m DB9 RS232 Serial Null Modem Cable using a rating × review-volume × price-fit model applied to published specs and reviews across the cables & connectors category. Compare with similarly-priced alternatives in the cables & connectors category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for cables & connectors of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Connect your serial devices
  • and transfer your files
  • 1m DB9 Null Modem Cable
  • DB9 Male to Female Cable
  • RS232 Null Modem Cable

Full Specifications

BrandStarTech.com
Cable TypeSerial
Connector TypeSerial
Connection TypeWired
Special FeatureData Transfer
Compatible DevicesPersonal Computer
Full listing titleStarTech 1m DB9 RS232 Serial Null Modem Cable, Black (SCNM9FM1MBK) | 9 pin Null Modem Cable, Cross Wired, DB-9 (M) to DB-9 (F), Male to Female

Ready to buy?

StarTech 1m DB9 RS232 Serial Null Modem Cable, Black (SCNM9FM1MBK) | 9 pin Null Modem Cable, Cross Wired, DB-9 (M) to DB-9 (F), Male to Female is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $8.93

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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StarTech 1m DB9 RS232 Serial Null Modem Cable, Black (SCNM9FM1MBK) | 9 pin Null Modem Cable, Cross Wired, DB-9 (M) to DB-9 (F), Male to Female
$8.93
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