Google and Back Market’s $3 ChromeOS Flex USB kit is finally back in stock

The highly sought-after $3 ChromeOS Flex USB kit from Google and Back Market has officially returned. Back in April, this kit sold out almost immediately, showing that many users wanted a simple path to upgrade their aging hardware. Now, Back Market has restocked the drive, giving consumers another chance to easily revive their older machines and keep them out of the landfill.

When Microsoft officially ended support for Windows 10 back on October 14, 2025, it left hundreds of millions of perfectly capable PCs at serious risk of obsolescence. Without regular security updates, those aging devices became highly vulnerable to zero-day exploits, malware, and sophisticated scams. This forced everyday users into a frustrating corner: either spend hundreds of dollars on a brand-new device or continue rolling the dice on an insecure, outdated machine.

ChromeOS Flex steps in as the perfect solution to this hardware problem. While creating your own bootable USB drive for ChromeOS Flex is a relatively straightforward process for relatively tech-savvy individuals, it introduces just enough friction to deter the average consumer from making the jump. This $3 physical kit entirely eliminates that hurdle.

It comes pre-loaded with Google’s fast, secure operating system, completely bypassing the media creation process. You simply plug the reusable key into your device and follow the installation prompts. Even better, a single key can be used to revive multiple laptops, making it an incredible value for families or small offices.

Beyond breathing new life into old computers, this initiative carries a significant environmental impact. By keeping existing hardware out of landfills, users avoid the heavy emissions associated with manufacturing and shipping a brand-new device. Google also notes that ChromeOS actually consumes 19% less energy on average than comparable legacy systems, compounding the environmental benefits over the device’s newly extended lifespan.

Given how quickly the initial batch of 3,000 units disappeared during the launch, there is no telling exactly how long this current inventory will last. If you have an aging Windows PC gathering dust in a closet, this foolproof $3 kit is the most cost-effective and environmentally friendly way to get it back up and running securely. If you’re curious whether your aging computer is compatible, you can check the ChromeOS Flex compatibility list here.