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RS232 Serial Cable Adapter, DB9 9-Pin Female to Female/Male to Male Gender… competes with other Keyboards & Mice products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full Keyboards & Mice category for alternatives.

Top-Longer

RS232 Serial Cable Adapter, DB9 9-Pin Female to Female/Male to Male Gender Changer Coupler Connector, Pack of 4 – Compatible with Serial Devices, Modems, Scanners, Industrial Equipment

Name: RS232 Serial Cable Adapter, DB9 9-Pin Female to Female/Male to Male Gender Changer Coupler Connector, Pack of 4 – Compatible with Serial Devices
Brand: Top-Longer
SKU: B01M9K0W7D
Price: 7.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$7.99

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🛒 See live eBay price Also on Amazon → Compare to similar keyboards & mice

*Price sourced from Amazon.com. Last updated 2026-08-19. Price and availability subject to change.

Bottom line: The RS232 Serial Cable Adapter, DB9 9-Pin Female to Female/Male to Male Gender Changer Coupler Connector, Pack of 4 – Compatible with Serial Devices, Modems, Scanners, Industrial Equipment is a niche pick — read recent reviews before buying in the keyboards & mice category, priced around $7.99. Compare close alternatives before committing.

SpecPicks Verdict

SpecPicks scored RS232 Serial Cable Adapter, DB9 9-Pin Female to Female/Male to Male… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the keyboards & mice category. Top-Longer's keyboards & mice lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for keyboards & mice 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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Backed by Top-Longer's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

✅ Reliable Data Transmission Ensure stable and secure data transfer with Top-Longer's RS232 DB9 gender changer adapter, perfect for industrial, commercial, and personal applications.
✅ Durable and High-Quality Build Crafted with premium materials for maximum durability, our DB9 adapters provide long-lasting performance and resistance to wear and tear.
✅ Versatile Compatibility Supports both Male to Male and Female to Female configurations, compatible with computers, printers, PLCs, CNC machines, and other industrial devices.
✅ Easy to Use & Plug-and-Play No additional software or drivers required. Simply plug in the adapter and instantly establish a secure RS232 connection for your devices.
✅ Compact & Portable Design Lightweight and compact, this adapter is easy to carry and store, making it ideal for on-the-go professionals and engineers.

Full Specifications

Brand	Top-Longer
Color	Silvery
Unit Count	4 Count
Model Number	TL DB9-MF
Connector Type	DB9
Item Dimensions	1.25 x 0.78 x 0.47 inches
Mfr Part Number	Gender changer 4
Number of Items	4
Number of Ports	4
Power Plug Type	No Plug
Compatible Devices	modem
Warranty Description	2 years warranty
Item dimensions L x W x H	1.25 x 0.78 x 0.47 inches

Ready to buy?

RS232 Serial Cable Adapter, DB9 9-Pin Female to Female/Male to Male Gender Changer Coupler Connector, Pack of 4 – Compatible with Serial Devices, Modems, Scanners, Industrial Equipment is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-08-19. Price and availability subject to change.