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RJ45 to RS232, DB9 9-Pin Serial Port Male to RJ45 Cat5 Ethernet LAN Console 3.3Ft
LFHUKEJI

RJ45 to RS232, DB9 9-Pin Serial Port Male to RJ45 Cat5 Ethernet LAN Console 3.3Ft

Bottom line: The LFHUKEJI RJ45 to RS232 ($7.99 on Amazon as of 2026-10-06): Oxygen-free copper wire for clear signal transmission; main trade-off: short 3.3ft reach limits rack placement.

$7.99

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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

  • ✓ Oxygen-free copper wire for clear signal transmission
  • ✓ Double-shielded to block interference
  • ✓ No chip or driver needed; plug-and-play data transfer
  • ✓ Bi-directional serial and network transparent transmission

Cons

  • ✗ Short 3.3ft reach limits rack placement
  • ✗ Only works on devices with a labeled console port
  • ✗ Not compatible with printers or non-console gear
  • ✗ DB9 male-only; no female-end or USB option

SpecPicks Verdict

SpecPicks scored LFHUKEJI RJ45 to RS232 using a rating × review-volume × price-fit model applied to published specs and reviews across the cables & connectors category. LFHUKEJI'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

  • DB9 RS232 male to RJ45 female console cable for TCP/IP network interface with the doual-way conversion, with the serial port network function, support serial data and network data bi-directional transparent transmission
  • Connect the equipment serial port to the RJ45 “console” port on routers, the cable can help engineer through the PC update the network device settings and device understratum operating
  • Compatible with most routers switch on the market.Please note that your device interface must have the "console" identification character.We do not support devices such as printers that do not have a "console" port.
  • Oxygen-free copper transmission wire, high-speed clear signal transmission.The cable has no built-in chip and does not require a driver. It functions as a data transfer.
  • Double-shielded standard to ensure that signal transmission without interference

Full Specifications

BrandLFHUKEJI
ColorTransparent
ModelGU13
Wattage600 watts
Cable TypeEthernet, USB
Item ShapeRound
Unit Count1 Count
Part NumberGU13
CompatibilityPC, Switch
Connector TypeRJ45
Number of Pins9
Number of Items1
Special FeatureHigh Speed
Connector GenderMale-to-Female
Compatible DevicesLaptop, PC, Printer, Router
Data Transfer Rate100 Megabytes Per Second
Indoor Outdoor UsageIndoor
Compatible Phone Modelsno
Connectivity TechnologySerial Port
Ethernet Cable CategoryCat 5e

Ready to buy?

RJ45 to RS232, DB9 9-Pin Serial Port Male to RJ45 Cat5 Ethernet LAN Console 3.3Ft 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 — $7.99

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

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