USB Serial Drivers for Apple's Mac OS X

We offer the best USB to serial drivers for Prolific PL-2303 and Winchiphead CH-340 / CH-341 / HL-340 for based on the new USB stack of macOS X. Program your Arduino, ESP8266 NodeMCU or other Internet of Things device within seconds after installation.

Written from scratch, our drivers ensure reliable data transfer without any dataloss and handle DTR/CTS control correctly. Kernel security is respected by offering signed kexts for macOS Sierra, El Capitan, Mavericks and Yosemite, and support for PowerPC macs. Sending breaks for accessing Cisco equipment, and out of the box supporting more than 30 serial to USB converters.

NEW: drivers are rewritten for the new USB stack of macOS Sierra: increased reliability and long term support!

Stay updated about the High Sierra support: subscribe to our support mailing list.

Download the Serial Detect App to test if the drivers will work with your devices, and we offer support and money back guarantee.



Features:
PL-2303 Driver (V3.0.3)
RS-232 features: Reliable data transfer, baudrates up to 230400, data bits (5, 6, 7, 8), Stop bits (1, 2), XON/XOFF support and sending break signals.
OS X Support: 10.12 (signed), 10.11 (signed), 10.10/10.9 (signed),
10.8, 10.7, 10.6, 10.5 (ppc)
Correct handling of handshake signal control (CTS, DTR, etc),
Based on new IOUSBHost stack
Easy installation, no unsafe tweaks
HL-340 / CH-340 / CH-341 Driver (V3.0.3)
RS-232 features: Reliable data transfer, baudrates up to 230400, data bits (5, 6, 7, 8), Stop bits (1, 2), XON/XOFF support and sending break signals.
OS X Support: 10.12 (signed), 10.11 (signed), 10.10/10.9 (signed),
10.8, 10.7, 10.6, 10.5 (ppc)
Correct handling of handshake signal control (CTS, DTR, etc),
Based on new IOUSBHost stack
Easy installation, no unsafe tweaks

Stay updated about new features and releases: subscribe to our mailing list.

Supported PL2303 cable brands: iKross, JBtek, Prolific, TRENDnet, NooElec, SMAKN, DROK, Sabrent, Waveshare, IOData, XIE etc

Supported CH340 / CH341 cable brands: Winchiphead, KEDSUM, HiLetgo, XIE, PWOW, Kangnice, ZCL, JBTek etc