does this work for Nintendo Switch with the adapter?

No, the Switch does not require an adapter for micro sd cards (it has a built-in micro sd card slot so the adapter would be way too big). Just slide the any micro sd card into the Switch's built-in slot and it will fit.

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Main image of SanDisk 400GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 120MB/s (SDSQUA4-400G-GN6MA)

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SanDisk 400GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 120MB/s (SDSQUA4-400G-GN6MA)

Used - Very Good

Capacity: 400GB

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Ideal for Android. smartphones and tablets, and MIL cameras
Up to 120MB/s transfer speeds let you move up to 1000 photos in a minute
Load apps faster with A1-rated performance
Class 10 for Full HD video recording and playback
Water-proof, temperature proof, X-ray proof, magnet proof, shock proof

Overview

Specs

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Model
Brand	SanDisk
Series	Ultra
Model	SDSQUA4-400G-GN6MA
Type	microSDXC

Details
Capacity	400GB
Speed Class Rating	UHS-I / U1 / Class 10 / A1
Read Speed	120MB/s

Features
Features	Ideal for Android Smartphones and Tablets SanDisk cards are compatible with Android smartphones and tablets. Capture and Store Even More Hours of Full HD Video With capacities of up to 1TB, you can store even more hours of Full HD video on the card and still have room for the videos, photos, music, movies and other files you want to shoot, save and share. Transfer Speeds of up to 120MB/s Blazing transfer speeds mean that your content moves fast letting you move up to 1000 photos in a minute. [32GB-1TB] Transfer Speeds of up to 98MB/s Blazing transfer speeds let you move photos fast. [16GB] Load Apps Faster with A1-rated performance Rated A1, the SanDisk Ultra microSD card is optimized for apps, delivering faster app launch and performance that provides a better smartphone experience. SanDisk Memory Zone App for Easy File Management Available from the Google Play store, the SanDisk Memory Zone app lets you view, access, and back up your phone's files in one location. It can also automatically move files from your device to your memory card to free up space. Compatible with MobileMate USB 3.0 Reader Use with the MobileMate USB 3.0 microSD card reader so you can move big files fast, move a lot of files fast or just make frequent file transfers that much quicker.

Additional Information
First Listed on Newegg	February 19, 2025

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