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Samsung T9 microSDXC 256GB Memory Card, 200MB/s Read 130MB/s Write, UHS-I Class 10 U3 V30 A2, Black (MB-MH256T/WW)

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Samsung
Samsung T9 256GB microSDXC UHS-I 200MB/s Card (MB-MH256T)
Samsung T9 microSDXC 256GB Memory Card, 200MB/s Read 130MB/s Write, UHS-I Class 10 U3 V30 A2, Black (MB-MH256T/WW)
€113.85 inc. VAT
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MB-MH256T/WW
€95.67
€113.85 inc. VAT
Ships from EU stock: 54 item(s)
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Product Code
04:591502
EAN Code
8806097718963
Manufacturer
Samsung

Quick Specs

Capacity
256 GB
Read Speed
200 MB/s
Speed Classes
Class 10 / U3 / V30 / A2
Bus Interface
UHS-I (DDR200)
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Samsung T9 microSDXC 256 GB — 200 MB/s read, Class 10 / U3 / V30 / A2

256 GB microSDXCClass 10 / U3 / V30 / A2Read 200 MB/sClass 10 / U3 / V30

The MB-MH256T/WW is Samsung’s T9 microSDXC card in 256 GB. Samsung rates it at 200 MB/s sequential read and 130 MB/s write, with the Class 10 / U3 / V30 / A2 marks that matter for video recording and for running apps directly from the card. T9 is the fast card in the new range Samsung launched in 2026 to replace EVO Plus, PRO Plus and PRO Ultimate. It takes over the position PRO Ultimate held, at the same 200 MB/s read and 130 MB/s write. One change deserves to be stated openly rather than buried: the T-series carries a 3-year manufacturer warranty where PRO Ultimate 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 200 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

✓ 4K and 8K video in an action camera or drone
✓ A long shoot where you empty the card through a fast reader
✓ Android phones and tablets that run apps from the card
✓ Nintendo Switch and other handheld game libraries

Key Features

 
200 MB/s read, 130 MB/s write
T9 matches the fastest microSD Samsung has made and sits above T7’s 170 MB/s. As with every card in the range, the read figure needs a DDR200-capable Samsung reader — see the compatibility note above, because it is the one thing people misread about these cards.
 
U3, V30 and A2 at every capacity
The full set of marks, unchanged across the line. V30 guarantees a sustained 30 MB/s write floor for 4K recording; A2 covers random access when Android runs apps directly from the card.
 
The line that replaces PRO Ultimate
Samsung retired the PRO Ultimate microSD name in 2026 and T9 took its place. Specifications carried across almost unchanged, so if you have used PRO Ultimate before you know exactly what this card does.
 
Three years, not ten
Worth hearing from us rather than discovering later. Samsung warrants T9 for 3 years; PRO Ultimate was warranted for 10. If warranty length is your deciding factor, remaining PRO Ultimate stock is currently the stronger buy at the same speed.
 
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. These are Samsung’s internal claims; no IEC or ISO standard is cited.

Technical Specifications

Identification
Brand Samsung — first-party memory card
Product Line T9 microSD Card — launched 2026, replaces the PRO Ultimate generation
Part Number (MPN) MB-MH256T/WW
EAN / GTIN 8806097718963
Colour Black
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 T-series datasheet states whether an SD adapter is included with this part number. Ask us to check the box before ordering if the adapter matters to you.
Speed & Classes
Sequential Read 200 MB/s — requires a DDR200-capable Samsung reader
Sequential Write 130 MB/s
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 Black
Warranty
Warranty 1-Year Warranty (Singular)
Samsung Term Samsung publishes a 3-year limited warranty on T-series cards (1 year on an SD adapter). Note this is shorter than the 10 years carried by the PRO Ultimate line it replaces. 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 T9 portable SSD?
No. Samsung also sells a T9 Portable SSD, a pocket drive with a USB-C cable. This is a microSD card that shares the name. The part number tells you which is which: MB- is a memory card, MU- is an SSD.
How does T9 differ from T7?
T9 reads at 200 MB/s; T7 reads at 170. Both write at 130 MB/s and both carry Class 10, U3, V30 and A2 at every capacity, with the same 3-year term. Inside a phone or console they will feel the same — the gap shows up over a fast reader.
Will I really get 200 MB/s?
Only through a reader supporting Samsung’s DDR200 mode. In a phone, camera, console or standard laptop slot the card runs at roughly 104 MB/s, the ceiling of the standard UHS-I bus. That is the bus, not the card.
Does it include an SD adapter?
Samsung does not publish box contents for this part number, so we will not claim it either way. Ask us and we will check the box before shipping.
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
T9 is the card to buy if you genuinely move large files off a card with a proper reader — 200 MB/s over DDR200 is roughly double what the standard UHS-I bus allows, and on a long shoot that is real time saved. If the card is going to live inside a phone or a Switch and rarely come out, you are paying for a headline you will never see, and T7 or an EVO Plus will behave identically. The one figure worth comparing before you decide is the warranty: at the time of writing, remaining PRO Ultimate stock offers the same 200/130 MB/s with a 10-year term against T9’s 3. 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 the fastest microSD Samsung currently sells at a serious capacity, you shoot 4K or 8K, and you routinely empty the card through a DDR200-capable reader.

Skip it if

The card will simply live inside a phone or console (T7 or EVO Plus will feel the same), you want the longest manufacturer cover, or it is going into a dashcam or CCTV recorder.

Also consider

T7 at 170 MB/s for less, remaining PRO Ultimate stock for the 10-year warranty at the same speed, or PRO Endurance if the card is going into a recorder.

Features - Samsung - MB-MH256T/WW

More Details
Product Code
04:591502
EAN Code
8806097718963
Manufacturer
Samsung
Technical specifications
Capacity
256GB
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