Samsung PRO Plus microSDXC 256GB Memory Card with USB Card Reader, 180MB/s Read 130MB/s Write, U3 V30 A2, Blue (MB-MD256SB/WW)
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Samsung
MB-MD256SB/WW
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Competitive EU pricing
Delivered to Cyprus from EU stock
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Samsung PRO Plus microSDXC 256 GB — 180 MB/s read, Class 10 / U3 / V30 / A2
256 GB microSDXCClass 10 / U3 / V30 / A2Read 180 MB/sUSB card reader included
The MB-MD256SB/WW is Samsung’s PRO Plus microSDXC card in 256 GB. Samsung rates it at 180 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. The SB in the part number is the part worth noticing: this version ships with a USB card reader rather than the more common SD adapter, so it plugs straight into a laptop with no SD slot. The reader is also what unlocks the rated read speed. 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 180 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 video in an action camera, drone or phone
✓ Offloading footage to a laptop without hunting for a reader
✓ Android phones and tablets that run apps from the card
✓ A Nintendo Switch or handheld game library
Key Features
180 MB/s read, 130 MB/s write
PRO Plus sits one step below Samsung’s fastest microSD and carries the same 130 MB/s write. The read figure needs a DDR200-capable reader — and unusually for a memory card, this bundle actually includes one.
A USB reader in the box, not an SD adapter
Most microSD cards ship with an SD adapter, which only helps if your laptop has an SD slot. This one includes a USB reader instead, so it works with any machine that has a USB port — and it is the reader that makes the 180 MB/s reachable.
A2 — built to run apps, not just store them
A2 is an SD Association rating for random access, which is what matters when Android launches an app from the card rather than streaming a file off it. A1 and unrated cards feel slower at that job in a way headline numbers never show.
V30 for sustained 4K recording
V30 guarantees a sustained 30 MB/s minimum write, the mark camera and drone makers specify for 4K. A floor rather than a peak, which is exactly why it is the number worth checking.
Six-proof protection — on Samsung’s own tests
Water to 1 m for 72 hours, −25 to 85 °C, airport X-ray to 100 mGy, 15,000 gauss, 5 m drops and 10,000 insertions. Samsung’s internal claims; no IEC or ISO standard is cited.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
The reader in the box changes the value of this bundle more than people expect. Every microSD in Samsung’s range quotes a read speed that only exists over its DDR200 extension, and almost nobody owns a reader that supports it — so most buyers never see the number they paid for. Here it is included. Two other things worth knowing: Samsung renamed the microSD range in 2026, so T7 and T9 now sit where PRO Plus and PRO Ultimate did, and those newer cards carry a 3-year warranty against PRO Plus’s 10. And if the card will simply live inside a phone, EVO Plus will feel identical for less money. 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 a fast, well-warranted 256 GB card and a reader you can actually use with it — particularly if your laptop has no SD slot.
Skip it if
You need an SD adapter for a camera (buy the SA version), you are buying for a dashcam or CCTV recorder, or the card will only ever sit in a phone.
Also consider
The SA version with an SD adapter instead, PRO Ultimate at 200 MB/s, or EVO Plus if the card will simply live in a phone.
Technical specifications
Μέγεθος
256GB
Χαρακτηριστικά
Product Code
04:450472
EAN Code
8806094780697
Manufacturer
Samsung