Amazon.com: VoiceJoy RJ45 to USB Adapter for Plantronics CS500,CS510,CS520,CS530,CS540 : Electronics
Polycom Compatible Plantronics VoIP Wireless Headset Bundle with Electronic Remote Answerer (EHS) included | SoundPoint® Phones: IP 335, IP 430, IP 450, IP 550, IP 560, IP 650, IP 670, VVX300, VVX500, VVX310, VVX600, VVX400, VVX1500, VVX410
Plantronics Wall Adapter with Straight Plug for 510S B335 MDA200 CS540 W740 W430 17229135208 | eBay
Plantronics APS-11 Electronic Hookswitch EHS Cable for Zultys, Mitel Aastra and Siemens Phones and Plantronics CS540, CS530, CS510, CS520, Savi W710, W720, W730, W740, W745
Genuine Plantronics AC Adapter For CS55 CS540 Wireless Headset Charger OEM | eBay