XMSJSIY DB9 RS232 to RJ45 Extender, DB9 9-Pin Serial Port Female&Male to RJ45 CAT5 CAT6 Ethernet LAN Extend Adapter Cable-2pcs (2-Cable)
XMSJSIY

DB9 RS232 to RJ45 Extender, DB9 9-Pin Serial Port Female&Male to RJ45 CAT5 CAT6 Ethernet LAN Extend Adapter Cable-2pcs (2-Cable)

$9.98 ★★★★½4.6(134 reviews)

*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.

Bottom line: The DB9 RS232 to RJ45 Extender, DB9 9-Pin Serial Port Female&Male to RJ45 CAT5 CAT6 Ethernet LAN Extend Adapter Cable-2pcs (2-Cable) is a category leader on buyer feedback in the cables & connectors category, priced around $9.98, rated 4.6★ across 134 verified Amazon reviews. A confident buy for most shoppers in this category.

DB9 Serial RS232 Port to RJ45 Cat5/Cat6 adapter, Interface: DB9 Male to RJ45 female; 9pin/8P8C.the adapter run RS232 data over long distances (up to 100m) using UTP Cat 5/ Cat6 cable to bridge the gap.Compatible with desktop computer, digital machine tools, PDA, bar code and other standard DB9 serial devices

SpecPicks Verdict

SpecPicks classifies XMSJSIY DB9 RS232 to RJ45 Extender, DB9 9-Pin Serial Port… as a category leader on buyer feedback in the cables & connectors category, based on 134 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. XMSJSIY's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

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 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

  • ✓ Highly rated — 4.6★ average across customer reviews
  • ✓ Backed by XMSJSIY'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

  • DB9 to RJ45 adapter: used for TCP/IP network interface with serial port network function, support serial data and network data bidirectional transparent transmission.Compatible with desktop computer, digital machine tools, PDA, bar code and other standard DB9 serial devices, stable and reliable performance, support maximum distance 66ft.
  • The DB9 RS232 COM signal is transmitted over the network cable,When using this adapter, it is recommended to use within a distance of 1-15 meters.Requires no external power, easy and Convenient to use.
  • High quality alloy transmission port reduce the transmission impedance and interference,environmentally friendly PVC material, super wear-resistant, Integral injection molding. improve data transmission rate and transmission quality.
  • Interface: DB9 Male to RJ45 female; 9pin/8P8C.the adapter run RS232 data over long distances (up to 100m) using UTP Cat 5/ Cat6 cable to bridge the gap.
  • Special Note: Usually this product needs to be used in pairs, specifically divided into: female to female, male to female, male to male three kinds of situations. Can also be used alone.

Full Specifications

BrandXMSJSIY
Color2-Cable
Model755641611589
InterfaceDB9 Male to RJ45 female; 9pin/8P8C.the adapter run RS232 data over long distances (up to 100m) using UTP Cat 5/ Cat6 cable to bridge the gap.
Cable TypeEthernet
Item ShapeRound
Unit Count2 Count
Connector TypeRJ45
Number of Pins9
Outer MaterialPolyvinyl Chloride (PVC)
Number of Items2
Special FeatureData Transfer
Connector GenderFemale-to-Female, Male-to-Female, Male-to-Male
Compatible DevicesPC

Ready to buy?

XMSJSIY DB9 RS232 to RJ45 Extender, DB9 9-Pin Serial Port Female&Male to RJ45 CAT5 CAT6 Ethernet LAN Extend Adapter Cable-2pcs (2-Cable) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.

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XMSJSIY DB9 RS232 to RJ45 Extender, DB9 9-Pin Serial Port Female&Male to RJ45 CAT5 CAT6 Ethernet LAN Extend Adapter Cable-2pcs (2-Cable)
$9.98
4.6★ (134)
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