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Small black microSDXC card with full-size SD adapter

SAMSUNG

SAMSUNG PRO Plus 128GB microSDXC MB-MD128KA/AM memory card

SKU CH-TT9G-6KCQB MPN MB-MD128KA/AM

128 GB microSDXC card rated U3, A2 and V30 with 160 MB/s read and 120 MB/s write, plus six-proof protection

  • Total capacity128 GB
  • Speed classUHS-I / U3 / Class 10 / A2 / V30
  • Max read speed160 MB/s
  • Write throughput120 MB/s
  • Product typeMicroSDXC
  • Key features6-Proof features (Water-proof, Temperature-proof, X-ray-proo

Capacity 128GB

  • Capture seamless 4K video with U3, V30 and 160MB/s read
  • Fast burst shooting backed by 120MB/s write and Class 10 rating
  • Expand storage for games and apps with 128GB capacity
  • Survives water, temperature, X-ray, magnet, drop and wearout with 6-proof protection
  • A2 rating speeds up app loading on tablets and gaming devices

Ready for 4K capture

The Samsung PRO Plus microSDXC card delivers 128 GB of storage with UHS-I U3, Class 10, A2 and V30 ratings. Sequential read speeds reach 160 MB/s and write speeds hit 120 MB/s, keeping up with 4K video recording on compatible phones, drones and tablets. The bundled adapter lets you slot it into full-size SD readers or cameras.

Silent solid-state operation

With no moving parts the card runs completely silent and draws minimal power from the host device. The six-proof protection — water, temperature, X-ray, magnetic, drop and wearout resistance — means environmental stress does not throttle performance or risk data loss during extended shoots.

Compact toughness for daily carry

The microSDXC form factor fits action cameras, drones and mobile devices without adding bulk, while the included adapter covers standard SD slots. Built-in wearout proofing and magnetic shielding protect the NAND during frequent swaps, though users needing capacities beyond 512 GB or faster sustained writes for professional cinema workflows will need a different tier.

How it compares

Measured against everything we stock in SD & MicroSD Memory Cards, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 90% of the 1,947 comparable items (median $46.99).
Total capacity 128 GB
Higher than about 60% of the 1,132 comparable items (median 64 GB).
Price per TB $109.30 per TB
Cheaper than about 94% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSAMSUNG
Product linePRO Plus
Model nameMB-MD128KA/AM
Total capacity128 GB
Product typeMicroSDXC
Performance
Speed classUHS-I / U3 / Class 10 / A2 / V30
Max read speed160 MB/s
Write throughput120 MB/s
Size & build
Shipping weight0.01 kg
Package size153 × 102 × 1 mm

Other versions of this model

2 more in the same range

Questions about this item

How do I install the microSDXC card and adapter without damaging the contacts?

Insert the card label-side up into the adapter, then push both into the device slot until they click; forcing it upside-down bends the gold pins.

What wear-related maintenance or replacement should I expect with the 128GB capacity?

The wearout-proof rating and A2 class mean normal use will not require maintenance; replace only if the device reports read/write errors.

At what sustained write speed does the V30 rating become the limiting factor?

The card guarantees a minimum 30MB/s sequential write, so prolonged 4K recording will settle at that floor rather than the 120MB/s peak.

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