Steven Carmichael

signal processing, XR, sim racing, microscopes, STM32 and ESP32 projects


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Lenovo Chromebook C340 2-in-1 15.6” FHD IPS Touch i3-8130U 4GB RAM 32GB eMMC


item number:   304527111077
Condition: New
Type: Notebook/Laptop
Model: Lenovo Chromebook C340
MPN: 81T9000XUS
Operating System: Chrome OS
Processor Speed: 2.20 GHz
Graphics Processing Type: Integrated/On-Board Graphics Intel UHD Graphics 600
Storage: eMMC 32 GB
RAM Size: 4 GB
Processor: Intel Core i3 8th Gen.
Screen: 15.6-in (1920 x 1080) IPS, anti-glare, Touchscreen, 250 nits
Features: Bluetooth, Built-in Microphone, Built-in Webcam, Convertible 2-in-1 Laptop/Tablet
Country/Region of Manufacture: China
Input: Internal Keyboard, non-backlit
Battery: 4 cell 56Wh
Power: AC Adapter
Chassis: Mineral Grey
Ports: & Slots: 2 x USB-C 3.1 Gen 1, 1 x USB-A 3.1 Gen 1, MicroSD card reader, Headphone/mic combo, Kensington lock slot
Dimensions: 361.5mm x 248.85mm x 18.95mm / 14.23” x 9.8” x 0.74”
Weight: Starting at 4.4 pounds
Warranty: It is covered by manufacturer’s Warranty Repair Service Service until June, 2023.

  Lenovo Authorized seller


received 28 July
My solitary C340 arrived today in a sealed Lenovo box.
Somewhat evocative of my now-ancient MacBook Pro;
less tapered and a darker gray (no illuminated apple logo)…
It fired up a few seconds after plugging in its USB-C charger.
It needed a (~5 minute) update.
It tried and failed to sync settings without first asking for my passphrase…
Lenovo Chromebook community
Lenovo IdeaPad C340-15 hardware manual

Ordered a USB-C dock with DisplayPort

Cable Matters’ USB C hub works perfectly with this Chromebook.

As Amazon reviewers noted, the single USB-2 port can be limiting,
but in this case is used for the USB connection from my Apple 27” Cinema Display (also via MiniDP adapter),
Except that the Cinema display is significantly brighter than the C340’s,
they are otherwise nearly so compatible as is the MacBook Pro for which the display was originally purchased.
Cinema display speakers automagically play from the C340, and it has USB ports on the back,
to which a keyboard and mouse are plugged, being a fan of neither touchpads nor touch screens.

Connect your Chromebook to a monitor
Multiple Chromebook monitors by USB-C
VLC Media Player on Chromebook plays FLAC
Chromebook external NTFS hard drives
It mounts the 1TB NTFS USB drive attached to our network router, which is used for FLAC music, images
and e.g. PDF files that are shared among my several PCs and Macs.

A satisfactory for me Windows PC replacement wants:

coding on a Chromebook: VSCode.dev

How to install and use VS Code on a Chromebook

The github.dev web-based editor