Samsung P9 Express microSD Express Card, 256GB microSDXC Memory Card, Up to 800 MB/s, for Nintendo-Switch ™ 2, (MB MK256T/AM)

Upgrade your gaming with the P9 Express, compatible with Nintendo Switch™ 2¹⁰. Store and access your favorite games and downloadable content (DLCs), load them fast, and enjoy smooth, reliable gameplay for both casual and high-demand gamers. Built for gaming marathons, the card stays cool while delivering consistent speed and performance. This isn’t just a storage solution—it’s a game-changer, combining speed, durability, and efficiency.

¹Read speed up to 800 MB/s based on P9 Express microSD Card 512GB using a PCIe test board. 4x faster than standard UHS-I microSD cards measured using PRO Ultimate 512GB cards with Samsung readers. Actual speeds may vary depending on host device, interface, usage conditions, and other factors. Speeds slower on standard microSDXC™ and microSD™ (UHS-I) compared to microSD™ Express (e.g., Nintendo Switch 2™).

²Samsung is not liable for any damages and/or loss of data or expenses incurred from memory card data recovery.

³Waterproof: withstand up to 72 hours in seawater.

⁴Temperature proof: operating temperatures of -13℉ to 185℉; non-operating temperatures of -40℉ to 185℉.

⁵X-Ray Proof: up to 100mGy, equal to airport X-ray machines.

⁶Magnetic-Proof up to 15,000 gauss, or the magnetic field equivalent of a high-field MRI.

⁷Drop: withstand drops up to 16.4 feet (5 meters).

⁸Wearout: up to 10,000 swipes.

⁹Limited warranty of 3 years. See all warranty terms, conditions and limitations.

¹⁰Nintendo Switch is a registered trademark of Nintendo.

¹¹Transfer speeds slower on standard microSDXC™ and microSD™ (UHS-I) compared to microSD™ Express (e.g., Nintendo Switch 2™).

¹²Samsung Magician software is available on Windows® and macOS®. It requires Windows® 10 and higher, or macOS® High Sierra (10.13) and higher. Older versions of the Windows®, and macOS® operating systems may not be supported.

¹³Source – 2003-2024 OMDIA data: NAND suppliers’ revenue market share. Results are not an endorsement of Samsung. Any reliance on these results is at the third-party’s own risk.

TRANSFER SPEEDS UP TO 800 MB/S: With sequential read speeds up to 800 MB/s, get into your game up to 4× faster than our standard microSD cards (UHS I)¹.
DYNAMIC THERMAL GUARD: Keeps its cool even when the action heats up. Dynamic Thermal Guard helps reduce overheating for fast, smooth gameplay.
ALL YOUR GAMES ON ONE TINY CARD: Store all your games and downloadable content (DLCs) with up to 512GB of reliable storage. No deleting. No compromises.
6-PROOF PROTECTION WITH 3-YEAR LIMITED WARRANTY: Built to last, made for peace of mind. Anything can happen when you’re gaming on the go. With 6 types of protection²⁻⁹, the P9 Express can handle it all—helping maintain your game progress.
NEXT-GEN AND BACKWARD COMPATIBLE: Your microSD Express card is compatible with Nintendo Switch 2¹⁰ and microSD UHS-I¹¹ devices, including tablets, drones, cameras and more.
BOOST YOUR MEMORY CARD HEALTH: Samsung Magician Software helps you unlock unstoppable P9 Express performance. It includes product authenticity verification and drive health monitoring.¹¹
WORLD’S NO. 1 FLASH MEMORY BRAND: Performance and reliability you can count on from the world’s number one brand for flash memory since 2003.¹² All firmware and components are produced in-house, including our world-renowned DRAM and NAND, for quality you can trust.