USB to Serial (RS-232/DB9): CH340/CH341 Driver

By oemadmin on Last Modified: Jul 23, 2025
USB to Serial (RS-232/DB9): CH340/CH341 Driver
🧱 Device
USB devices
#️⃣ Model No.
CH340G
CH340C
CH340
Also Known As
Chinese Arduino (Ch340)
CH340 Driver
CH340G Driver
CH341 Driver
USB-SERIAL CH340 Driver
USB-SERIAL CH341 Driver
USB-SERIAL CH341A Driver
ch341ser
usb ch340
atomstack a5
ch341s64
ESP8266MOD
CH341SER.ZIP
CPU/Chipset(s)
WCH CH340G
Interface/port(s)
USB
RS-232 (DB9)
Operating System(s)
Windows 11 x64
Windows 10 x64
Windows 10 x86
Windows 8.1 64bit
Windows 8.1 32bit
Windows 8 64bit
Windows 8 32bit (x86)
Windows 7 64bit
Windows 7 32bit
Windows Vista x86
Windows XP x64 Edition
Windows XP 32bit
Windows 2000
Windows ME
Windows 98SE
Windows 98
Windows Server 2022
Windows Server 2019
Windows Server 2016
Windows Server 2012
Windows Server 2008
Windows 2003 Server

This driver will let you use USB to serial programmable devices with the ch340g/ch340c/ch314 chipsets. These programmable chips are used for small projects and some devices that have been converted for USB. There is a tutorial here on installation and other functions of the chip. If you are installing on a really old version of Windows such as Windows 98 make sure you install all the latest drivers for USB support, sometimes the unofficial Windows 98 Service packs are the best way. Devices using ESP8266 Chipset are often interfaced with the CH340 chip.

(Latest) WCH CH340 Driver

File: CH341SER.ZIP

⬇ Download ⚡ Fast Mirror
Operating System: Windows 11/10/8.1/8/7/Vista/XP/2000/98/Server 2022/2019/2016/2012/2008/2003 File Size: 553 KB Driver Version: 3.8.2023.02 Driver Type: USB Driver File Extention: .zip
SHA-256 Checksum: f70ef90b51aba69bc59afcb395023cb0f41e2a24998f2a47314a71c4a20e8355

(older version) WCH CH340 Driver

File: CH341SER-3.7.ZIP

⬇ Download ⚡ Fast Mirror
Operating System: Windows 11/10/8.1/8/7/Vista/XP/2000/98/Server 2022/2019/2016/2012/2008/2003 File Size: 545 KB Driver Version: 3.7.2022.01 Driver Type: USB Driver File Extention: .zip
SHA-256 Checksum: 0b1da457085bdf981ca24de2ab72a24b6460b52375ac886abff0dbec79d360ec

WCH CH340 Driver

File: CH341SER-master.zip

⬇ Download ⚡ Fast Mirror
Operating System: Windows 11 x64/10/8.1/8/7/Vista/XP 64bit & 32bit File Size: 141 KB Driver Version: 3.4.2014.08 Driver Type: USB Driver File Extention: .zip
SHA-256 Checksum: 84823fb09d8017c33cc35fb10888c2eef3d55c5cb38a36bf04b012f86d5c0b30

ch340 driver

File: CH341SER.EXE

⬇ Download ⚡ Fast Mirror
Operating System: Windows 10/8.1/8/7/Vista/XP/2000/ME/98SE/98 File Size: 237 KB Driver Version: 3.4 Driver Type: USB Driver File Extention: .exe
SHA-256 Checksum: 9cf96fddf474eda80f2b4c09f8ef19443cf6768429819e4cba7b869291b7b8b5

ch340 driver

File: CH341_USB_to_Serial.zip

⬇ Download ⚡ Fast Mirror
Operating System: Windows 11 x64/10/8.1/8/7/Vista/XP/2000/ME/98 SE/98 (64bit & 32bit) File Size: 252 KB Driver Version: 3.1.2009.06 Driver Type: USB Driver File Extention: .zip
SHA-256 Checksum: 843763d3d5a984aa58d03213cf02a80954a4c93cf5244558f3363acc7de13e1a
HWID(s)
USB\VID_1A86&PID_7523
USB\VID_1A86&PID_5523
USB\VID_4348&PID_5523&REV_0250
USB\VID_4348&PID_5523&REV_0250
USBSERPORT\SER5523
CH341PORT\SER5523

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