DTECH
DTECH RS232 Serial Cable DB9 Null Modem Male to Female Cord Full Handshaking 7 Wire Crossover for Computer Switch Laptop Router Data Communication (10 Feet, Black)
Bottom line: The DTECH RS232 Serial Cable DB9 Null Modem Male to Female Cord Full ($11.98 on Amazon as of 2026-10-06): True full-handshaking 7-wire null modem: 2-3, 4-6, 7-8 crossed (TX/RX, RTS/CTS, DTR/DSR); main trade-off: crossover only — will not work where a straight-through RS232 extension is required.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ True full-handshaking 7-wire null modem: 2-3, 4-6, 7-8 crossed (TX/RX, RTS/CTS, DTR/DSR)
- ✓ 10 ft reach lets a laptop sit away from rack gear, plotters, or factory test benches
- ✓ Al foil shielding on the DE9 run helps keep serial data clean over the full length
- ✓ Thumbscrews on both DB9 ends lock the connection so console sessions survive bumps
Cons
- ✗ Crossover only — will not work where a straight-through RS232 extension is required
- ✗ Male-to-female DB9 only; no gender changers included for M/M or F/F equipment
- ✗ Not a 15-pin VGA cable, a frequent mix-up that leads to returns
- ✗ 30AWG conductors are thin, so rough handling at the shell is the likely failure point
Manufacturer description
Full Handshaking Signal RS232 Crossover Cable (All Wire Connected)Note:1.It’s a 10 ft long RS232 serial crossover cable male 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…
SpecPicks Verdict
SpecPicks scored DTECH RS232 Serial Cable DB9 Null Modem Male to Female 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 serial null modem cable male to female (7 wire type and full handshaking) connects your computer to device with COM port RS-232 compatible interface
- RS232 cable is wired as a 9 pin serial cable Null Modem that 2-3, 4-6, 7-8 line are cross linked (TX,RX,RTS, CTS, DTR,DSR wires are connected); standard shielded DE9 rs 232 cable with AL foil
- DB9 RS232 serial cable male to female features DB9 connector on each end equipped with screws to ensure an easy and solid serial extension connection for stable 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 (db9 male to female cable, not computer monitor DB15 VGA-cable)
- 10 feet long null DB9 cable m/f for hooking up PC laptop to some old RS232C equipment like scanner, Modem, router, USB to serial adapter, printer, plotter, camera, barcode / embroidery machine, touchscreen, microcontroller, factory test equipment
Full Specifications
| Brand | DTECH |
|---|---|
| Color | Female to Female |
| Gauge | 30.00 |
| Model | DT-9007B-3M |
| Cable Type | Serial |
| Item Shape | Round |
| Model Name | Null Serial Cable 10ft |
| Unit Count | 1 Count |
| Item Length | 10 Feet |
| Part Number | DT-9007B-3M |
| Connectivity | USB |
| Compatibility | PC, Switch |
| Connector Type | DB9 |
| Number of Pins | 9 |
| Connection Type | Wired |
| Maximum Voltage | 5 Volts (DC) |
| Number of Items | 1 |
| Special Feature | Data Transfer, Low Voltage |
| Connector Gender | Male-to-Female |
| Specification Met | ISO |
Ready to buy?
DTECH RS232 Serial Cable DB9 Null Modem Male to Female Cord Full Handshaking 7 Wire Crossover for Computer Switch Laptop Router 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.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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