Valve designer Lawrence Yang has made a public plea to users, asking them not to mod their devices in a bid to increase the Steam Deck’s SSD to house a 2242 M.2 NVMe SSD, rather than the 2230 form factor SSD it comes with as standard.
In response to an article reporting one such way of doing this, Yang replied: “Hi, please don’t do this. The charger IC gets very hot and nearby thermal pads should not be moved. In addition, most 2242 m.2 drives draw more power and get hotter than what Deck is designed for.”
Yang finished by writing that, while the mod in question “may appear to work”, it will “significantly shorten the life of your Deck”. So, certainly something that is best avoided.