Name: Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10
Brand: Samsung
SKU: cmo0wfdq24b97jxlvyqcfm4iu
Availability: InStock

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Description

Extreme endurance for monitoring devicesTake the worry out of always-on recording. Engineered to deliver longest lasting performance, the Samsung PRO Endurance is a perfect fit for CCTV, dash cams, and body cams. Capture your crucial moments in high-resolution, even in harsh conditions.Built to last up to 140K hours of recordingAstoundingly reliable stamina. With capacities up to 256GB[1] , the PRO Endurance records and rewrites up to 140K hours (over 16 years)**]. Plus, your data is secured with a limited warranty up to 5 years.Record and play in FHD/4KThe PRO Endurance optimises handling of large video files with read/write speeds up to 100/40MB/s[2]. Plus, FHD and 4K resolution support ensures that crucial moments are recorded in immense clarity and detail for the times you need them the most.Critical data. Safeguarded.From severe weather to extensive wear and tear, the PRO Endurance stands up to real-world situations. It is rigorously tested and proven resistant to magnets[3] , X-rays , water , drop , wearout , and withstands operating temperatures ranging from -25°C to 85°C.World's No.1 Flash MemoryExperience the superior performance and reliability that you can 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.

Specifications

Capacity	128 GB
Flash card type	MicroSDXC
Read speed	100 MB/s
Write speed	40 MB/s
Internal memory type	UHS-I
UHS Speed Class	Class 3 (U3)
Video Speed Class	V30
Flash memory class	Class 10
Product colour	White
Mean time between failures (MTBF)	10000 h
Endurance	10000 cycles per logical sector
Certification	CE(UKCA)/FCC/VCCI/RCM
Memory voltage	2.7,3.6 V
Operating temperature (T-T)	-25 - 85 °C
Storage temperature (T-T)	-40 - 85 °C
Width	15 mm
Depth	1 mm
Height	11 mm
Weight	0.25 g
Quantity per pack	1 pc(s)
Memory adapter included	SD
Harmonized System (HS) code	85235190
Voltage	2.7~3.6V
Compatible products	Surveillance (IP/Home/Network) cam, Dash cam, Body cam, and other always-on applications.
Compliance certificates	Federal Communications Commission (FCC), CE, VCCI, RCM, UKCA

Full specifications

Marque	Samsung
Référence fabricant	mbmj128ka/eu
EAN	8806092767256

The Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 in its market context in 2026

Choosing the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 means opting for the expertise of Samsung in the Informatique category. Its price starting from £69.85 makes it a serious option on the market. Buyers interested in this brand also look at the Samsung LC34G55TWWPXXU computer monitor 86.4 cm (34") 3440 x 1440 pixels UltraWide Quad HD LED Black to complete their comparison. On Compiral, all displayed prices are updated regularly and retailers are selected for their reliability and quality of customer service.

Samsung: what this model offers

What buyers remember about the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10: consistent quality, intuitive use and a price that stays within market norms for this level of performance. The positioning of Samsung on the Informatique segment ensures access to spare parts and a structured after-sales service, which matters greatly in the long run. A solid choice in 2026, whether for a new purchase or to replace a failing device. Also discover the Samsung 870 EVO 1 TB 2.5" Serial ATA III V-NAND MLC from the same brand for a second level of comparison.

The strengths that really make a difference

What truly differentiates the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 from other products in the Informatique category comes down to a few concrete points: the build quality typical of Samsung, its availability from many retailers and accessible after-sales support. These criteria, often decisive for buyers, favour this model over alternatives on the market in 2026. Compare with the Samsung LC34G55TWWPXXU computer monitor 86.4 cm (34") 3440 x 1440 pixels UltraWide Quad HD LED Black if you wish to explore other models from the brand.

What you need to know before buying

Before buying the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10, check the following points: stock availability at your chosen retailer, the returns policy, warranty period and delivery charges. These details are accessible from our offers table at the top of this page. Samsung generally offers a well-structured after-sales network for the Informatique category.

Market price ranges in 2026

Range	Indicative price	For whom	What you get
Entry-level	Under 384300 £	Tight budget, occasional use	Essential features, reliable for beginners
Mid-range	384300 £ to 896710 £	Regular daily use	Good value for money, solid performance
High-end	Over 896710 £	Demanding users	The best of the category, all advanced features

Comparing prices before buying the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 can save you between £10 and £40 depending on the retailer and the time of year. Use Compiral to never overpay for your online purchases. The 2 offers listed on this page all come from verified retailers with sales conditions compliant with consumer protection law.

Frequently asked questions about Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10

Is there a refurbished version of the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10?

Refurbished versions of the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 may be available from certain Compiral partner retailers. These refurbished products allow you to save between 20% and 40% compared to the new price while still benefiting from a warranty. Check availability in our offers table and review the warranty conditions offered by the retailer.

When do prices for the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 drop during the year?

Prices for the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 typically drop during Black Friday (November), the January sales and the summer sales (July). Promotional deals are also common around Cyber Monday and the holiday season. Our price history lets you spot trends and assess whether a price drop is likely soon in the Informatique category.

Is delivery free for the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 at all retailers?

Free delivery is not guaranteed for the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 at every retailer. Some include it in their price, others charge separately. On Compiral, use the free delivery filter to display only offers with free postage. The total price shown in our table always includes delivery costs for a true cost comparison.

How do I return the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 if I am not satisfied?

You have a 14-day right of withdrawal for any online purchase, applicable to the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 regardless of the retailer. Precise return conditions vary by retailer: check their returns policy before buying. Statutory consumer rights protect you in the event of a defect discovered after delivery.

Is the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 worth its price in 2026?

In 2026, the Samsung MB-MJ128K 128 GB MicroSDXC UHS-I Class 10 is listed from £69.85 at our partner retailers. This price is consistent with the positioning of Samsung in the Informatique category. To judge whether this price is currently attractive, check the price history on our product page. Also compare the total price including delivery to avoid any surprises at checkout.