# 🚫 Fake MicroSD: don't get fooled. How to spot fake cards before you lose your games

🚫 Fake MicroSD: don't get fooled. How to spot fake cards before you lose your games It is the nightmare of every retro console and tech lover: you buy a 512GB MicroSD at an incredible price on AliExpress or Amazon, but when you try to fill it, files start to corrupt or the console stops booting. At Bytechip we see this every day. The market is flooded with cards with faked capacity. We show you how to spot them in 5 minutes. 🤔 How does the trick work? "Fake" cards are programmed to fool the operating system. Your PC will tell you it has 512GB, but physically it may only have 32GB. The symptom: When you go past the real limit (those 32GB), the card starts overwriting old files with new ones. The result: Everything gets corrupted and you lose your saved games. 🛠️ The definitive diagnostic tools If you have just bought a card, don't use it until you have run one of these tests: 1. H2testw (the standard for Windows) It is the most reliable program. It writes data across the whole surface of the card and then reads it back to check there are no errors. How to use it: Select your SD, tick "All available space" and click "Write + Verify". The verdict: If you see a red message saying "Media is likely defective", ask for a refund immediately. 2. VTOY (for advanced users) If you prefer something quick, this tool checks the integrity of the memory without having to wait hours for the whole card to fill. 3. SD Insight (for Android) If you do not have a PC at hand, this app tells you who the real manufacturer of the internal chip is. If the card says "SanDisk" on the outside but the internal chip says "Unknown", be suspicious. 💡 3 Bytechip tips to avoid falling into the trap Distrust absurd prices: Nobody sells a 1TB MicroSD for €10. If the price is too good to be true, it is a scam. Look at the seller, not the platform: On Amazon there are third-party sellers who sell counterfeits. Always buy when shipping is "Fulfilled by Amazon" or directly from the official shop (Samsung, SanDisk, Kingston). The weight of the packaging: Original brands take great care over cardboard printing. If the letters look blurry or the colours are dull, it is a copy. Here is a selection of the best MicroSD cards you can find on Amazon. These are the ones we always recommend at Bytechip because they are war "tanks": they are fast, durable and almost impossible to fail in a retro console or a phone. 🚀 The best MicroSD cards (guaranteed quality) To make this selection useful, we have divided the options by the ideal use of each capacity: 1. Samsung EVO Select (the best all-rounder) It is probably the most balanced card on the market. Very fast (U3, V30) and extremely reliable. 32GB: Perfect for lightweight operating systems or consoles that only emulate up to 16-bit. 64GB / 128GB: The ideal size for the Trimui Smart Pro or the R36S with a good collection of PS1 and PSP games. 256GB: For those who want EVERYTHING (complete Dreamcast and DS collections and heavy games). 👉 [See Samsung prices https://amzn.to/490RTNy] 2. SanDisk Extreme (for those who want maximum speed) If you are going to be constantly moving files of many gigabytes from the PC, this card will save you a lot of time. Recommended use: Ideal if you record 4K video or use the card to load heavy games on Android. 👉 [See SanDisk Extreme prices https://amzn.to/4baNPeQ] 3. SanDisk Ultra (the economical but safe option) It is a step below the Extreme in write speed, but for reading games on retro consoles it is more than enough. Quality/price: It is the best seller and the one that usually gives the fewest compatibility problems. 👉 [See prices SanDisk Ultra on Amazon] 4. Kingston Canvas Go! Plus A great alternative to Samsung. Very robust and designed to withstand harsh conditions (heat, X-rays, water). Ideal for: Users who take the console everywhere or travel a lot. 👉 [See Kingston prices at https://amzn.to/49ynO83] ← Back to the blog