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The Best Rj9 Adapter of 2022 – Reviews & Buying Guide

After hours researching and comparing all models on the market, we find out the Best Rj9 Adapter of 2022. Check our ranking below.

2,404 Reviews Scanned

Rank No. #1
SYGGDERS USB Female to Rj9 4p4c 4-Pin Male Adapter, Suitable for Multiple Voip Telephone Cables, with 30cm Round Black Cable (RJ9 to USB 30cm)
  • CABLE COMPATIBILITY:This cable is compatible with Avaya 6402D 6424D+M 1140 1165 1210 8403 8410D 8434DX 4406D+4412D+4424D+4424LD+1120 1220 6408D+6416D+M 1230 1408 1416 2410 2420 4610 5610 56205621 5625 9404 9406 9408 9508 DT1 DT3 DT5 QE4610 landline phones. [Not applicable to Avaya J139 J169 1608 1616 9608G 9611G 9620 9621G 9630 9640 9640G 9641G and 9650 IP phones]
  • NOTE: This cable cannot provide power and is not suitable for mobile phones and computers. It is compatible with multiple VoIP phone lines and is only compatible with certain specific landline models mentioned
  • WIDE COMPATIBILITY: Adapt USB connection to RJ9 4P4C 4-pin male port to maintain clear audio and data transmission, aiming to provide efficient signal transmission and make it suitable for various communication devices
  • PLUG AND PLAY: USB female to RJ9 4P4C male cable, plug and play, easy to carry, no need for additional drivers or software for quick and easy installation
  • HIGH QUALITY MATERIALS: Made of high-quality materials, flexible and tensile, not easy to break, reliable and durable to use
Rank No. #2
Headset Adapter Converter 3.5mm Plug to Female RJ9 Handset/Headset Plug for Ciscoo Telephone 9961 9941 7940 7941 7942 7970 7971 8841 8845 M22 (1 Pack), BLACK 3.5mm to rj9 ADAPTER
  • ★[3.5mm to RJ9 adapter]: 3.5 to rj9 adapter 3.5mm Headphone Converter to Office Telephone IP Phones ★[RJ9 To 3.5mm]:This headphone headset jack adapter will allow you to use your smartphone, gaming and PC / laptop headsets with 3.5mm plugs on your Ciscoo telephones.
  • ★[Compatible with Ciscoo VOIP office phone]: Headset Adapter Converter 3.5mm Plug to Female RJ9/RJ10 Headset/Handset Plug for Most Office Phones
  • ★[Compatibility]: ONLY COMPATIBLE WITH Ciscoo Unified0 IP Phones: 7931G 7940 7940G 7941 7941G 7942 7942G 7945 7945G 7960 7960G 7961 7961G 7962 7962G 7965 7965G 7970 7970G 7971 7971G 7975 7975G 6921 6941 6945 6961 7821 7841 7861 8811 8841 8851 8861 8941 8945 8961 9951 9971 and Plantronicss Amplifier0: M10 M12 M22 & MX10 Vista0 Modular Adapters
  • ★[Note]: DOES NOT work with Applee EarPods or iPhone0 compatible headphones due to the 3.5mm being OMTP0 based instead of 0CTIA0
  • ★[IMPORTANT]: This cable is compatible only with the Cisco0 specified in above model, please kindly check and confirm before buying.
SaleRank No. #3
BOXOB RJ9 Male to USB Female Cable, 11.8 Inch RJ9 4P4C to USB Phone Jack Adapter Cord for VoIP Phones Fax Machines Telephone Communication Demodulation Adapter
  • Package Content: You will get 1 piece of RJ9 male to USB female cable, plug and play and easy to carry.
  • RJ9 to USB: RJ9 4P4C male to USB female telephone port adapter connection cable is easy to achieve conversion between RJ9 telephone jack and USB interface.
  • Premium Material: This RJ9 to USB adapter is made of polyethylene, resin, alloy and copper, reliable, durable and can serve you for a long time.
  • Compatibility: This cable is perfect for connecting phones, communications, fax machines, VoIP phones, etc.
  • Product Size: The cable is measured about 30cm/11.8 inch long. Before purchasing, please check the ports on your devices.
Rank No. #4
RJ9 to USB Headset Adapter Compatible with Plantronics/Jabra/Wireless DECT Headsets,for Computer/Notebook/Mac/Tablet USB Male to RJ9 Female
  • Convert your RJ9 headset to computer's USB plug headset, USB to RJ9 female audio headset adapter.
  • You can convert your wireless headphones into USB wired headphones,The RJ9 adapter is suitable for devices such as computers, laptops, tablets and MACs with USB ports.
  • Compatible with wireless headset by Plantronics such model ( CS50 CS55 CS351n CS361n CS70n CS540n CS540 CS530 CS510 CS520 C054 C052 CS55)and(Jabra Pro 920 GN9125 GN9120) or D10 Wireless Headset etc.
  • Easy to install, plug and play, no driver required, no system restrictions.
  • NOTE: After plugging in the adapter, the system will automatically install the driver. If there is no microphone and sound, please switch the input setting in the sound menu of your system to USB or audio input. (Set the adapter as the default device)
Rank No. #5
AmzDeals 2-Pack RJ11 to RJ9 Adapter, Female RJ11 (6P4C) Jack to Male RJ9 (4P4C) Plug
  • Converts RJ9 Cord to RJ11 Male Connector
  • PREMIUM QUALITY: Made with Durable Housing, Pure Copper Wire, and Gold-Plated Contacts
  • RoHS Certified
  • Each Coupler and Cable is Precision Made and Tested
  • Made in USA with Lifetime Warranty
Rank No. #6
XMSJSIY RJ9 to 3.5mm Headsets Adapter Telephone Phones MIC Audio Splitter Adapter Cable RJ9 4P4C Male to 3.5mm Jack Headphone Microphone Audio Cable - 27CM/10inch
  • RJ9 to 3.5mm stereo audio cable works with PC headphones and most VOIP phones with RJ9/RJ10/RJ22 headphone jack. The 3.5mm jack is divided into two sockets for speakers and microphones
  • The adapter cable of the RJ9 desktop phone jack with dual 3.5mm audio cable computer headphone jack cannot be used with 2-in-1 integrated headphones
  • RJ9 to dual 3.5mm conversion cable can be connected to the headphone jack with RJ9 module socket, which is not compatible with the RJ11 wall phone jack
  • Computer headphone to phone headphone dual 3.5mm audio female socket to RJ9 module male headphone converter, computer headphone to phone headphone signal transmission is more stable, making it convenient to chat on the phone with your own headphones
  • 4P4C RJ9 headphone cable up to 3.5mm is suitable for offices, call centers, business meetings, home businesses, or for those who frequently use PC headphones
Rank No. #7
SYGGDERS RJ9 4p4c Male to USB Female Adapter with 30cm Circular Black Cable, Suitable for Multiple Voip Phone Lines (RJ9 30CM)
  • CABLE COMPATIBILITY:This cable is compatible with Avaya 6402D 6424D+M 1140 1165 1210 8403 8410D 8434DX 4406D+4412D+4424D+4424LD+1120 1220 6408D+6416D+M 1230 1408 1416 2410 2420 4610 5610 56205621 5625 9404 9406 9408 9508 DT1 DT3 DT5 QE4610 landline phones. [Not applicable to Avaya J139 J169 1608 1616 9608G 9611G 9620 9621G 9630 9640 9640G 9641G and 9650 IP phones]
  • NOTE:This cable is unable to provide power and is not compatible with Avaya Polycom ShoreTel Nec Mitel Plantronics desktop phones. It is only compatible with certain specific landline models mentioned
  • EFFICIENT SIGNAL TRANSMISSION:This cable is designed to provide efficient signal transmission, with pure copper conductors and stable transmission. It adapts USB connections to RJ9 4P4C 4-pin male ports to maintain clear audio and data transmission and enhance user experience
  • HIGH QUALITY MATERIALS:The wire body is wrapped in PVC material for safe insulation, good toughness, and long service life
  • PlUG AND PLAY:The cable is delicate and compact, easy to carry, and does not require additional drivers or software for installation. plug and play
Rank No. #8
Poyiccot RJ9 to 3.5mm Adapter, RJ9 Male to Dual 3.5mm Female Headphone Adapter for Telephone Audio Adapter Headset Buddy Cable for Office
  • 3.5mm Female to RJ9 Cable,Convert two 3.5mm plugs to single 4P4C RJ9/RJ10 headset plug, you can use your own headphone to chat on telephone with this cable.
  • Use PC Headset with most VOIP phones that have a RJ9/RJ10/RJ22 headset jack. (Not compatible with RJ11)
  • Adapter cable with dual 3.5mm PC Headset jack to RJ9 Desk Phones Jack. Note:the 3.5mm adapter is trrs port.
  • You can use your own headphone to chat on telephone with this cable.
  • Note: It can not work with 2 in 1 integrated headset.
Rank No. #9
RJ9 Plug to USB Headset Adapter Compatible with Plantronics Jabra Sennheiser Wireless DECT Headsets for Use with Computers PC Laptop Mac Tablet Window Softphones Devices
  • Convert your exist wired RJ9 plug headset into USB plug headset for computer PC laptop mac tablets softphone. SEE COMPATIBLE WIRED HEADSET LIST BEFORE PURCHASE.
  • Convert your exist wireless desktop headset system into a wireless headset system work with your coputer pc laptop mac tablets windows softphones. SEE COMPATIBLE WIRELESS HEADSET LIST IN DESCRIPTION
  • Easy setup, no extra software drivers. Need change your computer device sound audio setting to USB device : In windows click Start > Setting / Control Panel > System / Hardware and sound > Sound , Make sure USB device shows a green check mark in Input / Recording and Output / Playback tabs.
  • ONLY Compatible with wireless headset system by Plantronics such model CS50 CS55 CS351n CS361n CS70n CS540n CS540 CS530 CS510 CS520 C054 C052 CS55 Jabra Pro 920 GN9125 GN9120 Sennheiser D10 Wireless Headset. NOT compatible with EHS cable.
  • NOTE : if get no microphone then check the settings on computer/laptop or softphone app you are using, need to change microphone input setting to USB or try different input setting and it will work. In some plantronics wireless headset model, customer change the dial setting underneath the base and it work. Or contact seller for technical support.
SaleRank No. #10
VoiceJoy Standard 3.5mm Jack Smartphone Headset Adapter Cable Converter to RJ9 Plug for Cisco Unified Office Telephone 7970 7940 7941 7942 7971 etc
  • Convert 3.5mm Smartphone plug to single 4P4C RJ9/RJ10 handset plug
  • Save money by buying a smartphone headset, or using your existing one with your phone's handset jack.
  • ONLY COMPATIBLE WITH Cisco Unified IP Phones: 7931G 7940 7940G 7941 7941G 7942 7942G 7945 7945G 7960 7960G 7961 7961G 7962 7962G 7965 7965G 7970 7970G 7971 7971G 7975 7975G 6921 6941 6945 6961 7821 7841 7861 8811 8841 8851 8861 8941 8945 8961 9951 9971 and Plantronics Amplifier: M10 M12 M22 & MX10 Vista Modular Adapters
  • BUY THE ITEM TODAY IF YOU HAVE ONE OF THE PHONE OR AMPLIFIER MODELS LISTED ABOVE. NOT COMAPTIBLE WITH CISCO SPA SERIES

Last update on 2025-07-19 / Affiliate links / Images from Amazon Product Advertising API

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