Samsung PRO Endurance microSD card 32GBUK MB-MJ32KA/EU · White · 32 GB- Nominal capacity
- 32 GBThis one: 256 GB
STORAGE
Samsung PRO Endurance microSD card 256GB
UK MB-MJ256KA/EU · White · 256 GB
- Nominal capacity
- 256 GB
- Storage device type
- microSD flash memory card
- Form factor
- microSD
Samsung’s PRO Endurance microSD card 256GB in the exact UK MB-MJ256KA/EU configuration. Capacity, interface, form factor and rated performance refer to this exact storage configuration.
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THE ACTUAL PRODUCT
Compare with Samsung PRO Endurance microSD card 32GB
Specifications checked 17 Oct 2026Manufacturer specifications, not a hands-on test.
The nearest checked drives by key specifications, with what differs from the Samsung PRO Endurance microSD card 256GB. The first matches the Compare button above.
Samsung PRO Endurance microSD card 32GBUK MB-MJ32KA/EU · White · 32 GB
Samsung PRO Endurance microSD card 64GBUK MB-MJ64KA/EU · White · 64 GB- Nominal capacity
- 64 GBThis one: 256 GB
Samsung PRO Endurance microSD card 128GBUK MB-MJ128KA/EU · White · 128 GB- Nominal capacity
- 128 GBThis one: 256 GB
Key strengths
The manufacturer lists nominal capacity: 256.0.
The exact UK manufacturer identifier MB-MJ256KA/EU distinguishes this configuration from other models and bundles.
Before you buy
Published performance and battery figures are manufacturer claims. Actual results depend on configuration, settings and use; an unlisted feature or condition remains unknown.
Every specification. With its source.
Full specifications
Exact configuration: UK MB-MJ256KA/EU · White · 256 GB
25 specifications in 7 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”. 4 rows repeat listed facts in the manufacturer’s own wording, kept under “Manufacturer wording”.
Capacity & format
9 items
- Nominal capacity
- 256 GB
Manufacturer capacity: 256GB, (1GB=1,000,000,000 bytes) * Actual storage capacity may be lower than the labeled capacity. Part of the storage may be used for system files and other storage control purposes.. Decimal TB converted to GB where needed; formatted usable capacity is lower.
Source - Storage device type
- microSD flash memory cardSource
- Form factor
- microSDSource
- Interface
- UHS-I (SDR104)Source
- Dimensions
- 15 x 11 x 1 (mm)Source
- General Feature — Product Type
- microSDXC™ Memory Card
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - General Feature — Product Name
- PRO Endurance
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - General Feature — Capacity
- 256GB, (1GB=1,000,000,000 bytes) * Actual storage capacity may be lower than the labeled capacity. Part of the storage may be used for system files and other storage control purposes.
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - General Feature — Weight
- Approx. 0.25g
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source
Manufacturer wording (2)
The same facts in the manufacturer’s combined or original wording, each with its source.
- General Feature — Interface
- UHS-I (SDR104)
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - General Feature — Dimension (WxHxD)
- 15 x 11 x 1 (mm)
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source
Performance
2 items
- Performance — Speed
- Read: up to 100 MB/s, Write: up to 40MB/s * Performance results are based on internal testing conditions. Read/write speeds may vary by host device.
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - Performance — Speed Class
- U3, V30, Class 10
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source
Manufacturer wording (1)
The same facts in the manufacturer’s combined or original wording, each with its source.
- Rated performance and conditions
- Read: up to 100 MB/s, Write: up to 40MB/s * Performance results are based on internal testing conditions. Read/write speeds may vary by host device. (Speed); U3, V30, Class 10 (Speed Class)
Manufacturer performance claims; supplied test conditions/maximum wording retained. Not an independent benchmark. Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown. Manufacturer section: Performance. Source field: Speed. Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown. Manufacturer section: Performance. Source field: Speed Class.
Source
Endurance & warranty
2 items
- Manufacturer warranty and endurance
- Limited 5 year warranty * Warranty for SD adapter is limited to 1 year.Source
- Reliability — Endurance
- Up to 140,160 hours (or 16 years) of Full HD recording * Based on Full HD (1920x1080) video content recorded at 26 Mbps Video support.
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source
Manufacturer wording (1)
The same facts in the manufacturer’s combined or original wording, each with its source.
- Reliability — Warranty
- Limited 5 year warranty * Warranty for SD adapter is limited to 1 year.
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source
Power
1 item
- Environment — Operating Voltage
- 2.7~3.6V
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source
Features & software
1 item
- Certification — EMC
- CE(UKCA)/FCC/VCCI/RCM
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source
Environment & reliability
7 items
- Environment — Non-Operating Temperature
- -40°C to 85°C (-40°F to 185°F)
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - Environment — Operating Temperature
- -25°C to 85°C (-13°F to 185°F)
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - Environment — Magnetic
- 15,000 Gauss/30sec
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - Environment — X-ray
- 100mGy/210sec (ISO/IEC7816-1)
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - Environment — Water
- 1M, 3% NaCl, 72hrs
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - Environment — Humidity
- 40'C, 93%, 500hr (storage)
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - Environment — Durability
- 10,000 insertion/removal cycles
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source
Compatibility & box
3 items
- General Feature — Application
- Surveillance (IP/Home/Network) cam, Dash cam, Body cam, and other always-on applications.
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - General Feature — Accessory
- SD adapter
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source - Disclaimer — Disclaimer
- 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: www.samsung.com/support
Manufacturer claim in the exact MB-MJ256KA/EU specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Source
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