Skip to main content
DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Full Handshaking 7 Wire Crossover for Data Communication (10 Feet, Black)
DTECH

DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Full Handshaking 7 Wire Crossover for Data Communication (10 Feet, Black)

Bottom line: The DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Full ($11.98 on Amazon as of 2026-10-06): Full 7-wire handshaking crosses TX/RX, RTS/CTS and DTR/DSR for true null-modem links; main trade-off: crossover-only wiring, so it will not work as a straight-through serial cable.

$11.98

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Buy on Amazon — $11.98 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

  • ✓ Full 7-wire handshaking crosses TX/RX, RTS/CTS and DTR/DSR for true null-modem links
  • ✓ 10 feet of reach from a PC or laptop to bench gear across a workshop
  • ✓ Foil-AL shielding on a standard DE9 female-to-female run
  • ✓ Thumbscrews on both DB9 ends lock the connection against vibration

Cons

  • ✗ Crossover-only wiring, so it will not work as a straight-through serial cable
  • ✗ Female-to-female ends need a gender changer for female-port equipment
  • ✗ 30AWG conductors are thin, so the cable is light-duty rather than rugged
  • ✗ 10 feet is the only length here, awkward for a short desk-to-device hop

Manufacturer description

Full Handshaking Signal RS-232 Cross over Cord (All Wire Connected)Note:1.It’s a 10ft RS232 serial crossover cable female to female port, DO NOT perform straight through function.2.It’s not a 15 pin VGA cable to connects computer to monitor, is only for RS 232 communication port to interface one system to anther system.3.Shielded with standard Foil-Al layer shielding as most cables do, it fits for most of jobs.Transfer data between two devices using a RS-232C serial communication protocolIf your equipment require full wire null modem cable (full handshaking signal), take this 10 foot 9 pin…

Related Products

Other products in this category you may like:

SpecPicks Verdict

SpecPicks scored DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Full… using a rating × review-volume × price-fit model applied to published specs and reviews across the cables & connectors category. DTECH's cables & connectors lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. 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

  • 10ft female to female serial null modem cable (7 wire type and full handshaking) connects your computer to device with COM port RS-232 compatible interface
  • Wired as a 9 pin serial port Null-Modem cord that 2-3, 4-6, 7-8 line are cross linked (TX,RX,RTS, CTS, DTR,DSR wires are connected); standard shielded DE9 female rs232 cable with AL foil
  • DB9 female to female connector on each end equipped with screws to ensure an easy and solid connection for stable serial cross data communication
  • The wires inside are of 30AWG gauge and easy to solder to, and they connect to the pins in the order of the standard wire color code
  • 10 feet long null serial adapter f/f for hooking up PC laptop to some old RS232C equipment like scanner, Modem, printer, plotter, camera, barcode / embroidery machine, touchscreen, microcontroller, factory test equipment

Full Specifications

BrandDTECH
ColorBlack
Gauge30.00
ModelDT-9007C-3M
Cable TypeSerial
Item ShapeRound
Model NameNull Modem Serial Cable 10ft
Unit Count1 Count
Part NumberDT-9007C-3M
CompatibilityPC
Connector TypeDB9
Number of Pins9
Connection TypeWired
Number of Items1
Special FeatureData Transfer, Lightweight
Connector GenderFemale-to-Female
Specification MetISO
Compatible DevicesLaptop, PC, Printer, Router, Swicth
Data Transfer Rate6 Gigabits Per Second
Indoor Outdoor UsageIndoor

Ready to buy?

DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Full Handshaking 7 Wire Crossover for Data Communication (10 Feet, Black) 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 — $11.98

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

Related Cables & Connectors

Keep exploring SpecPicks

Other buying guides

Browse the catalog

Editorial

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →
DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Full Handshaking 7 Wire Crossover for Data Communication (10 Feet, Black)
$11.98
View on Amazon →