Tom's Hardware has highlighted Walmart's house-brand onn microSD Express cards as the lowest-priced storage expansion options for the Nintendo Switch 2 right now. The 256GB card costs $49.50, and the 512GB card costs $84.77. The publication notes that genuine storage deals are rare and that these are the best prices currently on the market.
Both cards share the same performance specifications, with read speeds up to 800 MB/s and write speeds up to 600 MB/s. The 256GB model is described as a strong budget pick that can hold roughly 20 first-party games or around six AAA titles, depending on the game. The 512GB version doubles capacity and works out to about $0.16 per GB, compared with $0.18 per GB for the 256GB card.
Tom's Hardware recommends the 256GB card for buyers who want to stay under a strict $50 budget, while the 512GB model is the better value if the extra $38 is acceptable. Walmart backs both cards with a limited one-year warranty. The deal roundup is marked as sponsored, so readers may want to weigh that context when considering the "best value" claim.