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Patriot 128GB microSDXC card with full-size SD adapter

Patriot Memory

Patriot Memory PEF128GEP31MCX 128GB microSDXC memory card

SKU CH-46KF-M1F3Z MPN PEF128GEP31MCX

A 128 GB microSDXC card rated U3, A1 and V30 with up to 90 MB/s read and 80 MB/s write speeds for 4K video and fast Android apps

  • Total capacity128 GB
  • Memory card formatMicroSD
  • Speed classUHS-I / U3 / Class 10 / A1 / V30
  • Max read speedUp to 90 MB/s
  • Write throughputUp to 80 MB/s
  • Product typeMicroSDXC

Capacity 128GB

  • A1 rating lets you store and run Android apps directly on the card
  • V30 class sustains 30 MB/s minimum write for 4K video capture
  • Read speeds up to 90 MB/s transfer photos and footage quickly
  • Write speeds up to 80 MB/s keep burst shooting and recording smooth
  • Included SD adapter lets the microSDXC card fit full-size SD slots

128GB microSDXC for Android and cameras

The Patriot EP Series PEF128GEP31MCX is a microSDXC memory card built for Android phones, tablets, action cameras and drones. It carries UHS-I U3, Class 10, A1 and V30 ratings, so it handles app storage and 4K video capture in a single package. An SD adapter is included for use in full-size card slots.

A1 rating enables direct app installation

The A1 App Performance Class is the specification that decides fit: it guarantees minimum random read and write IOPS so Android can install and launch apps directly from the card. Without A1, the card would only suit media storage. This card meets that threshold, making it suitable for expanding internal app space on compatible devices.

128GB capacity with V30 sustained write headroom

At 128GB the card holds hours of 4K footage or dozens of large apps and games. Sequential writes up to 80MB/s satisfy the V30 guarantee of 30MB/s minimum sustained throughput, so 4K recording continues without dropped frames. Buyers who need more storage should consider the 256GB variant in the same series.

How it compares

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

Price $12.99
Cheaper than about 91% 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 $101.48 per TB
Cheaper than about 95% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand namePatriot
Product lineEP Series
Model namePEF128GEP31MCX
Total capacity128 GB
Product typeMicroSDXC
Performance
Speed classUHS-I / U3 / Class 10 / A1 / V30
Max read speedUp to 90 MB/s
Write throughputUp to 80 MB/s
Storage
Memory card formatMicroSD
Size & build
Shipping weight0.01 kg
Package size131 × 98 × 6 mm

Other versions of this model

2 more in the same range

Questions about this item

Will the 90MB/s read speed actually make apps open faster on my phone?

The A1 rating means the card meets a minimum random read and write performance for Android app storage, so installed apps launch and run more smoothly than on a card without A1.

What does the UHS-I interface mean for real-world transfer limits?

UHS-I is the bus standard used by this card; the quoted 90MB/s read and 80MB/s write are the maximum sequential speeds the card can deliver over that interface.

Does the included adapter let me use this microSD card in a full-size SD slot?

Yes, the package includes a microSD-to-SD adapter so the card fits cameras, laptops or card readers that only have a standard SD slot.

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