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Samsung T7 microSDXC 256GB Memory Card, 170MB/s Read, UHS-I Class 10 U3 V30 A2, 3-Year Warranty, Blue (MB-MB256T/WW)

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Samsung
Samsung 256GB microSDXC UHS-I Class 10 Card MB-MB256T
Samsung T7 microSDXC 256GB Memory Card, 170MB/s Read, UHS-I Class 10 U3 V30 A2, 3-Year Warranty, Blue (MB-MB256T/WW)
€89.35 inc. VAT
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MB-MB256T/WW
€75.08
€89.35 inc. VAT
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Product Code
04:591475
EAN Code
8806097635055
Manufacturer
Samsung

Quick Specs

Capacity
256 GB
Read Speed
170 MB/s
Speed Classes
Class 10 / U3 / V30 / A2
Bus Interface
UHS-I (DDR200)
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Samsung T7 microSDXC 256 GB — 170 MB/s read, Class 10 / U3 / V30 / A2

256 GB microSDXCClass 10 / U3 / V30 / A2Read 170 MB/sClass 10 / U3 / V30

The MB-MB256T/WW is Samsung’s T7 microSDXC card in 256 GB. Samsung rates it at 170 MB/s sequential read, with the Class 10 / U3 / V30 / A2 marks that matter for video recording and for running apps directly from the card. T7 is part of the new range Samsung launched in 2026 to replace EVO Plus, PRO Plus and PRO Ultimate. It slots in as the everyday card for phones, tablets and gaming handhelds. There is one change buyers should know about, and we have put it in the specifications rather than the small print: the T-series carries a 3-year manufacturer warranty where the cards it replaces carried 10. It measures 15 × 11 × 1 mm and weighs about 0.25 g. Typically in stock with fast delivery across Cyprus.

Compatibility — check before buying:
The rated read speed needs the right reader. Samsung reaches 170 MB/s over UHS-I DDR200, a Samsung extension to the UHS-I bus rather than a standard mode — its own footnote says the figure is achieved “using Samsung readers”. In an ordinary phone, camera, laptop or card reader slot the bus tops out at the standard UHS-I SDR104 rate of about 104 MB/s, and that is what you will see. The card is fully compatible either way; only the headline number changes.

Best For

✓ Everyday phone, tablet and handheld storage at a useful size
✓ 4K video on a phone or an action camera
✓ Nintendo Switch and other handheld game libraries
✓ Anyone buying into Samsung’s current line rather than run-out stock

Key Features

 
Samsung’s new mainstream microSD
T7 replaces the EVO Plus and PRO Plus generation in Samsung’s 2026 range, sitting below the faster T9. It runs the full set of marks — Class 10, U3, V30 and A2 — at every capacity from 128 GB to 1 TB, which the outgoing EVO Plus did not.
 
U3, V30 and A2 at every capacity
A real improvement over the card it replaces: EVO Plus dropped to U1, V10 and A1 at 64 GB. In the T7 line the marks do not change with size, so you cannot buy the wrong capacity by accident.
 
170 MB/s read — with the right reader
Samsung reaches 170 MB/s over its DDR200 extension to the UHS-I bus. In a phone, camera or standard laptop slot expect about 104 MB/s, which is the standard bus ceiling. See the compatibility note above.
 
Three years, not ten
We would rather you heard this from us. Samsung warrants T7 for 3 years; the EVO Plus, PRO Plus and PRO Ultimate cards it replaces are warranted for 10. If warranty length is what you are optimising for, the older names are currently the stronger buy.
 
Six-proof protection — on Samsung’s own tests
Water to 1 m for 72 hours in 3% saltwater, −25 to 85 °C, airport X-ray to 100 mGy, 15,000 gauss, 5 m drops and 10,000 insertions. Samsung’s internal claims; the FCC, CE, VCCI and RCM marks it lists are compliance marks, not durability standards.

Technical Specifications

Identification
Brand Samsung — first-party memory card
Product Line T7 microSD Card — launched 2026, replaces the EVO Plus / PRO Plus generation
Part Number (MPN) MB-MB256T/WW
EAN / GTIN 8806097635055
Colour Blue
Capacity & Format
Capacity 256 GB
Format microSDXC
Bus Interface UHS-I (SDR104, plus Samsung DDR200 extension)
Box Contents Not published by Samsung. Neither the EU product pages nor the T7 datasheet state whether an SD adapter is included. We would rather tell you that than guess — ask us before ordering if the adapter matters.
Speed & Classes
Sequential Read 170 MB/s — requires a DDR200-capable Samsung reader
Sequential Write Samsung’s regional product pages quote 130 MB/s, but the official T7 datasheet (v1.1) contains no sequential write row at all. We publish it as page-sourced rather than datasheet-confirmed.
Speed Class Class 10
UHS Speed Class UHS Speed Class 3 (U3)
Video Speed Class V30
Application Performance Class A2
Durability
Water Up to 1 m for up to 72 hours in 3% saltwater
Temperature −25 °C to 85 °C operating; −40 °C to 85 °C non-operating
X-ray Up to 100 mGy (airport scanner level)
Magnetism Up to 15,000 gauss
Drop Up to 5 m, 10 drops
Insertion Cycles 10,000 mating cycles — this is an insertion count, not a lifespan or endurance rating
Standards Cited None. These are Samsung’s own test claims; no IEC, IPX or ISO standard is referenced.
Physical
Dimensions 15 × 11 × 1 mm
Weight Approx. 0.25 g (card only)
Colour Blue
Warranty
Warranty 1-Year Warranty (Singular)
Samsung Term Samsung publishes a 3-year limited warranty on T7 cards (1 year on an SD adapter). Note this is shorter than the 10 years carried by the older EVO Plus, PRO Plus and PRO Ultimate lines. Samsung’s own term is stated here for information; Singular’s direct warranty is 1 year.
Important Exclusion Samsung’s memory-card warranty expressly does not cover dashcam, CCTV, surveillance or other write-intensive continuous-recording use. For those, a PRO Endurance card is the correct product.
Not Published by Samsung
Endurance / TBW Not published. Samsung publishes no terabytes-written or lifespan figure for this line. The 10,000 figure above is insertion cycles.
Random IOPS Not published. The A1/A2 marks imply SD Association minimums, but Samsung publishes no IOPS numbers of its own.
Other Omissions NAND type and layer count, controller, MTBF and UBER are not published.

Frequently Asked Questions

Is this the same as a Samsung T7 portable SSD?
No, and this is the most common mix-up on this part number. Samsung has sold a T7 Portable SSD for years — a pocket drive with a USB cable. This is a microSD card that happens to share the name. Check the part number: MB- is a memory card, MU- is an SSD.
What replaced what?
In 2026 Samsung retired EVO Plus, PRO Plus and PRO Ultimate as microSD names. T7 takes the mainstream position and T9 the fast one. The specifications carried across almost unchanged; the warranty did not.
Why is the warranty only 3 years?
That is Samsung’s published term for the T-series. It is shorter than the 10 years on the lines it replaces, which is a genuine change and not a listing error. Singular’s own direct warranty is 1 year either way.
Does it include an SD adapter?
Samsung does not say. Neither its EU pages nor the T7 datasheet lists box contents for this part number, so we will not claim it either way. If you need the adapter, ask us to check the box before we ship.
Can I use it in a dashcam or CCTV camera?
It will work, but Samsung’s warranty explicitly excludes dashcam, CCTV, surveillance and other continuous-recording use. Those need a PRO Endurance card, which is designed and warranted for it.
Singular Expert Insight
The interesting thing about the 2026 relaunch is that it makes the older stock look better, not worse. A T7 and a PRO Plus at 256 GB carry the same speed classes, near-identical read speeds and the same six-proof claims — but PRO Plus is warranted for ten years and T7 for three. Where T7 clearly wins is consistency: Samsung applies U3, V30 and A2 to every capacity in the line, which removes the trap that caught buyers of the 64 GB EVO Plus. Our practical advice: if the prices are close, take whichever has the longer warranty; if you want the card that will still be sold in two years, take the T7. Browse our SD and microSD card range, or a card reader if you want the rated speed on a laptop.

Buyer’s Guide

Buy it if

You want Samsung’s current mainstream microSD at a serious capacity, with the full U3 / V30 / A2 set, for a phone, tablet, handheld console or action camera.

Skip it if

You want the longest possible manufacturer cover — the outgoing PRO Plus and EVO Plus carry 10 years against this card’s 3 — or the card is going into a dashcam or CCTV recorder.

Also consider

T9 at 200 MB/s if you empty the card through a fast reader, PRO Plus or EVO Plus while run-out stock lasts for the 10-year term, or PRO Endurance for a recorder.

Features - Samsung - MB-MB256T/WW

More Details
Product Code
04:591475
EAN Code
8806097635055
Manufacturer
Samsung
Technical specifications
Capacity
256GB
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