Jhoinrch USB to RJ9 Male to USB Female 4P4C landline Cable Adapter (20CM)

Designed for Avaya RJ9 interface landline devices, this adapter ensures stable signaling and pristine audio/data transmission. Perfect for VoIP systems, it supports multiple lines to streamline your communication workflow. Broad Compatibility Works with Avaya models:6402D, 6408D+, 6416D+M, 6424D+M, 8403, 8410D, 8434DX,4406D, 44121D, 4424D, 4424LD, 9504, 9508, DT1, DT3, DT5, QE4610,1120, 1140, 1165, 1210, 1230, 1408, 1416, 2410, 2420, 4610/4610SW, 4620/4620SW, 4621, 4622, 4625W, 4630SW, 5410, 5420, 5600 Series (5610, 5620, 5621, 5625), and 9400 Series (9404, 9406, 9408). Not Compatible: Avaya J139, J169, 1608, 1616, 9608G, 9611G, 9620, 9621G, 9630, 9640/9640G/9641G, 9650 IP Phones. Specifications: Length: 20CM (Compact & Tangle-Free) Interface: USB 2.0 Female to RJ9 4P4C Male Compatibility: Avaya Landline Devices (See List Above) Power: Does NOT supply power to devices. Ideal For: Upgrading legacy Avaya phone systems to modern USB setups. Offices, call centers, or home setups requiring reliable VoIP connectivity. Users seeking hassle-free, driver-free communication solutions. Package Includes: 1× USB to RJ9 4P4C Cable Adapter (20CM) Trusted Support Backed by Jhoinrch’s lifetime technical support and 1-year replacement guarantee. Questions? Our team responds within 24 business hours.