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Samsung PRO Plus microSDXC 512GB Memory Card with USB Card Reader, 180MB/s Read 130MB/s Write, U3 V30 A2, Blue (MB-MD512SB/WW)

Brand:
Samsung
MB-MD512SB/WW
€171.99
€204.67 inc. VAT
Out of stock
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Product Code
04:450473
EAN Code
8806094780680
Manufacturer
Samsung

Quick Specs

Capacity
512 GB
Read Speed
180 MB/s
Speed Classes
Class 10 / U3 / V30 / A2
Box Contents
USB card reader included
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Samsung PRO Plus microSDXC 512 GB — 180 MB/s read, Class 10 / U3 / V30 / A2

512 GB microSDXCClass 10 / U3 / V30 / A2Read 180 MB/sUSB card reader included

The MB-MD512SB/WW is Samsung’s PRO Plus microSDXC card in 512 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

✓ Offloading a large shoot to a laptop without hunting for a reader
✓ 4K video in an action camera, drone or phone
✓ A large game library on a handheld console
✓ Android phones and tablets that run apps from the card

Key Features

 
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 at all.
 
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. At 512 GB that matters: filling or emptying half a terabyte at 104 MB/s rather than 180 is the difference between a coffee break and a long wait.
 
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 the headline numbers never show.
 
Rated to 1.5 m, not 5 m — and we will say so
Samsung’s PRO Plus datasheet says 1.5 metres; its product pages say 5 metres. Both are Samsung. We publish both rather than quietly pick the flattering one — and either way, it survives any drop you are realistically going to give it.
 
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 precisely why it is the number to check.

Technical Specifications

Identification
Brand Samsung — first-party memory card
Product Line PRO Plus microSD Card
Part Number (MPN) MB-MD512SB/WW
EAN / GTIN 8806094780680
Colour Blue
Capacity & Format
Capacity 512 GB
Format microSDXC
Bus Interface UHS-I (SDR104, plus Samsung DDR200 extension)
Box Contents microSD card + USB card reader. Samsung describes it as an adapter that lets the microSD be read by devices with a USB-A port. It does not publish the reader’s own model or rated speed, so we do not quote one.
Speed & Classes
Sequential Read 180 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 Samsung contradicts itself here, so we publish both figures. Its PRO Plus datasheet (v2.1, August 2024) states “withstand 10 cycles drops up to 1.5 metres”. Its product pages state “withstand drops up to 5 metres”. Both are Samsung documents and we cannot reconcile them. In practice either figure covers any realistic drop from a hand, a pocket or a desk.
Insertion Cycles Up to 10,000 swipes — 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 10-year limited warranty on the card and 1 year on the bundled accessory. 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

Does it include an SD adapter?
No. This part number (SB) includes a USB card reader. If you need a full-size SD adapter for a camera or a laptop SD slot, the SA version of the same card is the one to buy.
Will I really get 180 MB/s?
Through the bundled reader, yes — it supports Samsung’s DDR200 mode. In a phone, camera or standard laptop slot the card runs at roughly 104 MB/s, the ceiling of the standard UHS-I bus rather than a limitation of the card.
How fast is the bundled reader?
Samsung does not publish the reader’s own model number or a rated speed for it — only that it lets the card be read through a USB-A port. We will not quote a figure it does not publish.
Is the drop rating really only 1.5 m?
Yes, for PRO Plus. Samsung’s PRO Plus datasheet states 1.5 m over 10 cycles, while PRO Ultimate, T7 and T9 state 5 m. Listings routinely copy 5 m across the whole range.
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
Two things are worth knowing at this capacity. First, the durability figures are not uniform across Samsung’s microSD lines the way most listings imply: PRO Plus is rated to a 1.5 m drop where PRO Ultimate, T7 and T9 are rated to 5 m, and to 1 m of water where PRO Ultimate is rated to 2 m. Not a reason to avoid it — a card that survives a 1.5 m drop survives everything a pocket does to it — but it should be stated rather than glossed over. Second, Samsung renamed the range in 2026: 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. At 512 GB, where the card represents real money, that difference is worth weighing. 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 large, fast, well-warranted 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.

Features - Samsung - MB-MD512SB/WW

More Details
Product Code
04:450473
EAN Code
8806094780680
Manufacturer
Samsung
Technical specifications
Capacity
512GB
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