Top 9 RS232 Over CAT5 – Serial Adapters

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1. Tripp Lite


Transmitter and Receiver B165-101,Black, Tripp Lite Serial over Cat5 / Cat6 RS232 Extender

Tripp Lite #ad - No software or drivers required. Plug-n-Play. Low cost solution that provides remote access and control of any RS232 protocol device. Supports full-duplex data communication. Locates an rs-232 serial device up to 1, 000 Meters from your system. Compatible with all RS-232 protocols.
BrandTripp Lite #ad
ManufacturerTRIPP LITE #ad
Height2.25 Inches
Length5.3 Inches
Weight0.9 Pounds
Width6.3 Inches
Part NumberB165-101
Warranty1 Year Limited Warranty

2. zdyCGTime


ZdyCGTime RJ45 to RS232 Cable, DB9 9-Pin Serial Port Female&Male to RJ45 Female Cat5/6 Ethernet LAN Console(15CM/6Inch)2Pack

zdyCGTime #ad - Please note: this is not eia/tia-561 or similar common pinout. The rs232 signal is transmitted over the network cable, When using this adapter, it is recommended to use within a distance of 1-15 meters.

Please note:can only be used in pairs to work 2 at the same time, please read the instructions carefully before buyingThis cable can be converted to DB9 9-Pin serial port, can not be used alone, DB9 port used to connect to the computer host or a variety of monitors. These units can only be used when paired together. They cannot be used as you would any other similar adapter. Size:15cm/6inch color: black features:(2 per pack dB9 Female to RJ45 Female cable and DB9 Male to RJ45 female cable. Requires no external power, easy and Convenient to use. Save money by using a cat5 cable versus a DB9 cable. Makes running cables easier due to RJ45 being thinner.
BrandzdyCGTime #ad
ManufacturerzdyCGTime #ad
Part Number7545826609

3. QiCheng&LYS


Cisco Console Cable 9-pin DB9 Female Serial RS232 Port to RJ45 Male Cat5 Ethernet LAN Rollover Console Cable Switch Cable CiscoDB9P to RJ45 1.8M

QiCheng&LYS #ad - Rs232 9-pin serial to rj45 cat5 ethernet, compatible with Cisco routers, including 600, 800, 1600 and 1700 series. Made of high-quality raw material pvc, long service life, wear-resistant, oxygen-free copper conductor, anti-UV anti-tarnish, acid and alkali resistant, durable, is your best choice.1. 8m color: blue 1 pack. Length: 6ft from head to tail approx. Easy to set up: plug and play, just plug the device into the adapter and plug the adapter into your PC or Mac. Connect the computer's serial port to the router, switch, and RJ45 console port on the firewall.
BrandQiCheng&LYS #ad
ManufacturerQiCheng&LYS #ad
Part NumberRJ45



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

XMSJSIY #ad - Can also be used alone. 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.

Db9 to rj45 adapter: used for tcp/ip network interface with serial port network function, digital machine tools, PDA, bar code and other standard DB9 serial devices, stable and reliable performance, support serial data and network data bidirectional transparent transmission. Compatible with desktop computer, support maximum distance 66ft. High quality alloy transmission port reduce the transmission impedance and interference, super wear-resistant, environmentally friendly PVC material, Integral injection molding.

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. 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. Improve data transmission rate and transmission quality.
BrandXMSJSIY #ad
ManufacturerSisselyan #ad

5. DTech


DTECH RS232 to RS485 / RS422 Serial Communication Data Converter Adapter Mini-Size

DTech #ad - No need serial port initialization. Pro grade rs232 to rs485 / rs422 converter. Unique serial charge pump drive technology, the real three-wire communication TXD, RXD, no external power supply, GND. Best solution for the serial data communication between serial port and RS485 or RS422 device. It easily lets you connect any RS485 or RS422 device directly to COM port. Rs 232 to 485 adapter supports baud rates up to 115. 2 kbps; automatic sense serial signal rate. Supports a maximum connection distance of 4000ft 1200m.
BrandDTech #ad
ManufacturerGuangzhou DTECH Electronics Technology Co.,Ltd #ad
Height4.2 Inches
Length6.4 Inches
Width2.2 Inches
Part Number8541672854
Warranty365 days after the date of the purchase

6. Moxa


MOXA NPort 5110-1 Port Serial Device Server, RS232, DB9 Male, 10/100 Ethernet

Moxa #ad - Small size for easy installation / SNMP MIB-II for network management. Easy-to-use Windows utility for configuring multiple device servers. Configure by Telnet, web browser, or Windows utility. Real com/tty drivers for Windows and Linux. Standard tcp/iP interface and versatile operation modes.
BrandMoxa #ad
ManufacturerMoxa Inc. #ad
Part NumberNA

7. DTech


DTECH DB9 to RJ45 Serial Adapter RS232 Female to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices

DTech #ad - Bi-directional db-9 female to RJ-45 female converter comes with thumbscrews for easy and secure connection. A simple, cost effective solution to process serial data communication between RS232 COM port devices over inexpensive cat5 cat6 RJ45 network cable.

A pair of db9 to rj45 socket coupler can be used a extender to extend rs232 serial signals up to 65ft. Computer laptop, barcode scanner, router, digital CNC machine tool, POS device, PDA, printer, modem, etc. Db9 female to rj45 modular adapter converts db9 female connector into an rj45 female connector DB9 female - RJ45 Female pinout: 1-1, 8-8, 4-4, 6-6, 7-7, 5-5, 2-2, 3-3, 9-x. Please be noted it's not 15 pin vga video port it's compatible with standard 9 Pin D-sub RS-232 Devices e. G.
BrandDTech #ad
Manufacturerguangzhouditedianzikejiyouxiangongsi #ad
Part NumberCB0241
Warranty180 days from purchase date

8. Arnorin


DB9 null modem male to female slimline data transfer serial port adapter 2 Pack

Arnorin #ad - Screws are removable and reversible. Ul grade 94v-0 connector insulator satisfies flammability requirements. Converts standard, straight wired cables to null modem wiring. Slimline design reduces leverage strain on computer ports. Null modem configuration with pin 9 open.
BrandArnorin #ad
ManufacturerKINGDEE INC #ad
Height0.7 Inches
Length1.3 Inches
Weight0.05 Pounds
Width0.5 Inches
Part NumberKAD9D90001-S-2

9. v AV Access


Supports PoE/PoC Function, AV Access HDMI Extender Over Cat5e/6a/7 up to [email protected] 164ft/50m with IR Remote Control, FHD HDMI Balun

v AV Access #ad - Flexible eq switch for 30m/50m ethernet cable. Hdmi extender supports full hd [email protected] uncompressed transmission over single cat5e/cat6/cat7/RJ45 cable, far-reaching up to 164ft50m.

It supports ir control, designed with built-in wideband IR Control, IR emitter and receiver cable are included in the package. Plug and play, no driver needed. Toggle the switch to adjust the picture quality to match cat cable length. One power adapter to power both units. Compatible with latest hdmi source and display devices, comcast, Amazon Fire TV 4K, Cisco cable box, Roku 4, such as Apple TV 4K, Xbox X, ps5, Vizio TV, SkyQ. Build-in superior Surge/ ESD protection. Sturdy metal enclosure provides durability and minimizes EMI/RFI noise interference. 24/7 customer service, just contact us by seller page whenever you needAV Access.
Brandv AV Access #ad
ManufacturerAV Access #ad
Height2.76 Inches
Length2.76 Inches
Weight0.44 Pounds
Width0.79 Inches
Part NumberHDEX40-L