Plantronics - Quick Disconnect/RJ-11 Phone Cable (85R38AA)
Reviews coming soon
About this product
The Quick Disconnect/RJ-11 Phone Cable (85R38AA) is designed for use with Plantronics H-Series headsets, enabling direct connection to Cisco 7940, 7960, and 7970 model phones that do not require a power cube. It also serves as a replacement cord for Plantronics M12, M22, and MX10 audio processors. The cable features a Quick Disconnect (QD) connector for easy headset detachment without dropping calls and is black in color.
Features
Compatible with Plantronics H-Series Headsets
Designed for use with Plantronics H-Series headsets, including models HW710, HW720, HW251, HW251N, HW261, HW261N, H81, H81N, H171, H171N, H41, H41N, H141, and H141N.
Direct Connection to Cisco IP Phones
Allows direct connection of Plantronics H-Series headsets to Cisco 7940, 7960, and 7970 model phones that do not require a power cube.
Replacement for M12, M22, MX10 Audio Processors
Serves as a replacement cord for Plantronics M12, M22, and MX10 audio processors.
Quick Disconnect (QD) Feature
Features a Quick Disconnect (QD) connector for easy headset detachment without dropping calls.
Color
Black.
Specifications
- Cable Length10 feetConnector Type (End 1)RJ11Connector Type (End 2)USB-C
Reviews
This product doesn't have any reviews yet.
Compare similar products

The Quick Disconnect/RJ-11 Phone Cable (85R38AA) is designed for use with Plantronics H-Series headsets, enabling direct connection to Cisco 7940, 7960, and 7970 model phones that do not require a power cube. It also serves as a replacement cord for Plantronics M12, M22, and MX10 audio processors. The cable features a Quick Disconnect (QD) connector for easy headset detachment without dropping calls and is black in color.

Upgrade your connectivity with the UGREEN USB-A to Ethernet Adapter. This compact device instantly adds a stable, high-speed Gigabit Ethernet port to any laptop, desktop, or device with a USB-A port. Designed for seamless plug-and-play operation (drivers required for Windows 7/8 and Linux), it delivers reliable wired network speeds up to 1Gbps — far surpassing typical Wi-Fi performance. Experience superior stability for online gaming, 4K streaming, video conferencing, and large file transfers without dropouts or lag. Compatible with Windows, macOS, Linux, Nintendo Switch, and TV boxes, this portable adapter ensures a fast, stable internet connection wherever you work or play. Built-in protections prevent overheating and over-current for safe, continuous operation.

For voice/data/video distribution, Cables To Go 15206 cable will handle bandwidth-intensive applications up to 350 MHz. Meets all Cat5E TIA/EIA standards, and drastically reduces both impedance and structural return loss (SRL) when compared to standard 100 MHz wire.

This Cat5e RJ45 Ethernet Patch Cable provides a reliable wired connection for high-speed networking in homes, offices, and professional setups. With support for Gigabit Ethernet speeds up to 1000 Mbps and bandwidth up to 350 MHz, the cable allows fast and efficient data transfer for streaming, gaming, online collaboration, and everyday internet use. A wired connection often delivers more stable performance than wireless networks, helping reduce latency and connection drops during demanding tasks. Built with four twisted pairs of wires, the cable is engineered to help reduce signal interference and maintain strong, consistent network performance. The molded RJ45 connectors feature strain relief to prevent damage from bending and frequent use, helping extend the lifespan of the cable. Its flexible yet durable jacket makes installation simple whether connecting devices on a desk, inside a rack, or within a structured cabling system. Compatible with most Ethernet-enabled devices including routers, switches, modems, gaming consoles, PCs, laptops, smart TVs, printers, and patch panels, this Cat5e cable offers dependable connectivity for a wide variety of networking applications.
Specs
Be the first to ask a question.
We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.






































