US
Samsung

Samsung PRO Endurance 128GB microSDXC Memory Card with Adapter

  • MicroSD Card
  • 128 GB
  • Micro SD
  • Manufacturer
4.7/ 5 on Amazon9,600Amazon ratings1,000+bought last month4.7ProductDome score
High confidenceUpdated 8 days agoAmazon data + ProductDome analysis · methodology
Best forYou need a microsd card built to record and overwrite footage continuously in a dash cam or security camera

A dependable microSD card for continuous-loop recording devices like dash cams and security cameras, not a card for high speed photo bursts.

View current price on Amazon →

As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.

Sizes Available

32 GB64GB128GB256 GB

Styles Available

Standard

Need a different one? Pick on Amazon →

ProductDome scorecard

How it ranks among the 19 microsd cards we track

4.7/ 5ProductDome scoreHigh confidence
Owner satisfaction · 56% of scorecategory median 4.6★4.7

4.7★ across 9,600 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 12,900 ratings5.0

9,600 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score4.1

1,000+ bought on Amazon last month.

Data quality · 11% of score5.0

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 19 microsd cards we track - how the scorecard works · full microsd cards data report. Confidence: high - strong rating volume and complete data.Updated 8 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

A 128GB microSDXC card built for round the clock overwrite cycles in dash cams, body cams and home security systems, rated Class 10, U1 and V10. Samsung backs it with a multi-year warranty and includes a full size SD adapter.

This is a microSD card, not the solid state drive some of the listing copy references. Its V10 speed class supports steady FHD and 4K recording rather than the burst speeds photographers look for in a U3 or V30 card. Samsung rates the line for up to 140,000 hours of continuous recording at higher capacities and for holding up across a wide operating temperature range, which is the point of an endurance card over a standard one.

  • 128GB microSDXC, Class 10 / U1 / V10
  • Rated for continuous overwrite recording
  • Operating range -25C to 85C
  • Includes SD adapter

Who it's for

Suits anyone running a dash cam, home security camera or body cam that records and overwrites footage continuously. Not the choice for burst photography or 4K video work that needs sustained write speeds higher than V10 provides.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Built for continuous loop recording rather than one-time storage
  • Rated across a wide -25C to 85C operating range
  • Includes a full size SD adapter
  • Backed by a multi-year warranty
What to check first
  • V10 speed class trails U3/V30 cards for burst photography
  • 128GB capacity records less footage than the 256GB version

Performance notes

The card is engineered for repeated overwrite cycles rather than one time storage, with Samsung rating higher capacity versions for up to 140,000 hours of recording. It operates across a wide temperature range from -25C to 85C and is built to hold up against water, drops and magnetic exposure, which matters for a card living inside a dash cam or an outdoor security camera.

Specifications

BrandSamsung
ModelMB-MJ128KA/AM
Dimensions & fit
Item Dimensions L x W0.6 × 0.4 inches
Capacity & performance
Memory Storage Capacity128 GB
Media Speed40 mb / s
Read Speed40 megabytes_per_second
Secure Digital Association Speed ClassClass 10
Flash Memory Video Speed ClassV30
Construction & materials
ColorWhite
Compatibility & installation
Compatible DevicesCamera, Drone, Gaming Console, Smartphone, Tablet
Hardware ConnectivitymicroSDXC
Included components
Unit Count1
Number of Packs1
Warranty & support
Warranty TypeManufacturer
Warranty Description5 years
Other details
Flash Memory TypeMicro SD
Number of Items1
Item HighlightmicroSD for Dash Cam, Body Cam, and Security Camera – Class 10, U1, V10 ( MB-MJ128KA/AM)
Mfr Part NumberMB-MJ128KA/AM
Additional FeaturesDrop Proof

How it compares

This product against the closest alternatives we track in microsd cards.

ProductAmazon ratingRatingsProductDome score
Samsung PRO Endurance 128GB microSDXC Memory Card with AdapterThis product4.7 / 59,6004.7 / 5
SanDisk 128GB Extreme microSD UHS I Card for 4K Video on SmartphonesSanDisk4.8 / 515,3004.8 / 5
Patriot 64GB Micro SD V30 A1 Memory CardPatriot Memory4.5 / 512,9004.7 / 5
Amazon Basics microSDXC Memory Card with Full Size AdapterAmazon Basics4.7 / 597,5004.6 / 5
GIGASTONE 128GB Micro SD Card 2-PackGigastone4.7 / 58,9004.6 / 5
Frequently asked

Questions about the Samsung MB-MJ128KA/AM

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

Is the Samsung PRO Endurance MB-MJ128KA/AM a microSD card or an SSD?

It is a 128GB microSDXC card. Some of the listing text references Samsung's portable SSD line, but this product ships as a microSD card with a full size adapter.

Will this Samsung PRO Endurance card work in a dash cam?

Yes, it is built for that use, rated Class 10, U1 and V10 for the continuous overwrite recording dash cams and security cameras do.

What operating temperature can the Samsung PRO Endurance 128GB handle?

Samsung rates it from -25C to 85C, which covers a dash cam left in a hot or cold vehicle.