Your new go-to card

For your action-packed life. Supercharged write speeds and trusted performance let you capture seamless 4K videos¹ on your phone or drone. Expand storage on your gaming device or tablet to play more performance-intensive games. Get the speed and capacity to stay on the go, no matter the device.

1 4K UHD video support for 512GB, 256GB and 128GB cards. Host device compatability may vary.

Shoot faster and more flawlessly with Samsung PRO Plus.

Take your burst shot

Shoot more and faster, flawlessly. Stunningly fast U3, Class10 rated read/write speeds of up to 160/120MB/s¹ let you smoothly take and transfer masses of photos². 4K videos stay with UHS-I, V30 rated speeds. With an A2 rating, you can store even more active apps and games.

1 The foregoing read & write speeds are based on internal tests conducted under controlled conditions.
Actual speeds may vary depending upon card capacity.

2 Stated performance is achieved by using PRO Plus microSD cards with Samsung readers.

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Add space, keep it all

Never run out. Huge capacities of 128GB, 256GB, and 512GB give you plenty of storage space.
Shoot as many lavish long takes and lush high-resolution photos as you want. Or load up on must-have apps and media. Now you've got the room.

* Test Device : Samsung Note Ultra

1 4K Video (3840*2160) 30fps (Video size 30Min 7.93 GB)

2 FHD Video (1920*1080) 30fps (Video size 30Min 2.95 GB)

3 Image 4000*3000 (Avg Pic size 2.36 MB)

4 Image 4000*1868 (Avg Pic size 1.81 MB)

The Samsung PRO Plus has huge capacities of 128GB, 256GB and 512GB to provide ample storage space.

You're fully protected

6-proof peace of mind. The PRO Plus takes on life’s adventures with water¹, temperature², X-ray³, magnet, drop , and wearout -proof protection. Your irreplaceable experiences deserve the reliable choice. And it’s all backed by a confident 10-year limited warranty.

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

1 Water proof: withstand up to 72 hours in seawater.

2 Temperature proof: operating temperatures of -25 C to 85 C; non-operating temperatures of -40 C to 85 C.

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

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

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

6 Wearout: up to 10,000 swipes

* Proofs are for the microSD card and do not include the adaptor.

World's No. 1 Flash Memory

Experience the superior performance and reliability that you can only get from the world's number one brand for flash memory since 2003. All firmware and components, including Samsung's world-renowned DRAM and NAND, are produced in-house, allowing end-to-end integration for quality you can trust.

*Source: 2003-2020 IHS Markit data: NAND suppliers' revenue market share.

The world's No.1 Samsung flash memory in 2003


  • Product Type
    microSDXC™ Memory Card
  • Capacity
    128GB, 256GB, 512GB
  • Read Speed
    Up to 160MB/s
  • Write Speed
    Up to 120MB/s

More specs

Model Code (Capacity)

  • MB-MD128K (128GB)

  • MB-MD256K (256GB)

  • MB-MD512K (512GB)

General Feature

  • Product Type

    microSDXC™ Memory Card (128/256/512GB)

  • Family Line

    PRO Plus

  • Application

    Mobile phone, Tablet, Action Camera, Drone, Laptop or computer, Gaming console, etc.

  • Capacity


  • Interface

    UHS-I (SDR104)

  • Dimension (WxHxD)

    15 x 11 x 1 (mm)

  • Weight

    Approx. 0.25g

  • Accessory

    SD adapter


  • Speed

    Read :
    up to 160MB/s
    Write :
    up to 120MB/s

  • Speed Class

    U3, V30, A2, Class 10


  • Operating Voltage



    -40°C to 85°C (-40°F to 185°F)


    -25°C to 85°C (-13°F to 185°F)


    15,000 Gauss/30sec

  • X-RAY

    100mGy/210sec (ISO/IEC7816-1)


    1M, 3% NaCl, 72hrs


    40'C, 93%, 500hr (storage)


    10,000 insertion/removal cycles


  • EMC



  • Limited 10 year warranty

    * Warranty does not extend to dashcam, CCTV, surveillance camera and other write-intensive uses.
    * Warranty for SD adapter is limited to 1 year.

  • 1) Samsung is not liable for any damages and/or loss of data or expenses incurred due to memory card data recovery. The results are based on internal tests, features and specs may vary by actual usage conditions.
  • 2) The Samsung product authentication for memory cards and USB flash drives is available at: