On February 12, 2026, the Nintendo Switch 2 game Mario Tennis Fever was released and I thought it’d be fun to play this with remote friends who don’t own the game. Nintendo proudly advertises that this is possible via GameShare, but fails to mention that there are two variants of GameShare: Online and Local. Some games - like Mario Tennis Fever - only support local GameShare. This is actually mentioned in the About this item section of the official product page for the USA, but absent from product pages for other regions. ...
USB Audio Sniffer
I recently started using USB wireless headphones when playing games on my Nintendo Switch 2, so I can fully enjoy 3D audio. These come with a USB adapter which connects to the console and presents itself as a USB audio device. This adapter then connects to the wirless headphones via 2.4 GHz for reduced latency. The issue? I like to stream my gameplay to YouTube using an HDMI capture card and the Nintendo Switch 2 can’t output audio to multiple devices at the same time. So I can choose between audio going through HDMI to the capture card or through USB to my ears, but not both 🤦. ...
microSD Express Benchmarks
This post was updated on 2026-04-20 using improved benchmarks of the sandisk card. You can find the original article on the Wayback Machine In a previous post I explained how I managed to connect microSD Express cards as PCIe NVMe devices to a computer’s M.2 slot. This eliminates possible overhead and bias of USB adapters. Additionally, it allows extracting additional information via the NVMe interface. So let’s do some benchmarks ⏱️. ...
A microSD Express card in an M.2 slot
The upcoming Nintendo Switch 2 game console features microSD Express cards, which I hadn’t heard about before. Since I got nothing else to do while waiting for the console to release, I dug deeper into what these actually are. These microSD Express cards have additional pins for … 🥁 … PCI Express. This allows transferring data much faster compared to their SDIO interface. So I went looking online for adapters, which can connect these cards to a computers PCIe port. To my surprise, these don’t exist. Heck, even for USB, there’s only a single adapter that you can buy: SanDisk PRO-READER SD Express Dual Card. There are a couple more for full-sized SD cards, but SD<->microSD adapters don’t seem to exist, which makes them useless to me. ...