Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › onn › Micro SD Cards
onn
onn 512GB C10 U3 V30 A2 microSDXC Flash Memory Card with Adapter

onn 512GB C10 U3 V30 A2 microSDXC Flash Memory Card with Adapter

5(2 ratings)

Best price now

$50.00at eBayChecked Nov 8

23% under what the other stores charge

Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

Visit eBay

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $50.00 at eBay on Nov 8.
  • Checked at 3 stores.

Our take on the onn 512GB C10 U3 V30 A2 microSDXC Flash Memory Card with Adapter

The onn 512GB microSDXC card is a budget-priced high-capacity card rated Class 10, U3, V30 and A2, with read speeds up to 100 MB/s and a 30 MB/s minimum write speed. It ships with a full-size SD adapter and is marketed for phones, tablets, cameras, drones, computers and the Nintendo Switch. The V30 and A2 ratings put it in line with mainstream cards for 4K recording and app storage, though its write ceiling is well below premium U3 cards. It suits shoppers who want maximum capacity for photos, video and game downloads at a low cost per gigabyte, not those who need sustained high-bitrate write performance.

Best forNintendo Switch game storagePhone and tablet photo librariesDrone and action camera 4K clipsBacking up files from a computer
Pros
  • Large 512GB capacity in a microSDXC card
  • V30 rating supports 4K video recording
  • A2 rating helps app performance on phones and tablets
  • Includes a full-size SD adapter
  • Rated for shock, water, temperature and x-ray resistance
Cons
  • 30 MB/s minimum write speed is modest for sustained high-bitrate recording
  • Read speed up to 100 MB/s trails premium cards
  • No stated warranty terms or endurance rating
  • Budget brand with less track record than SanDisk or Samsung

onn 512GB C10 U3 V30 A2 microSDXC Flash Memory Card with Adapter prices at every store

  • eBayNew

    In stock

    $50.00Free shippingChecked Nov 8
    Visit eBay
  • PayMore NorthgateNew

    In stock

    $64.99Free shippingChecked Nov 8
    Visit PayMore Northgate
  • WalmartNew

    In stock

    $94.00Checked Nov 8
    Visit Walmart

Also available at

  • eBayCheck price at eBay
  • WalmartCheck price at Walmart

Store links may earn us a commission.

onn 512GB C10 U3 V30 A2 microSDXC Flash Memory Card with Adapter price history

Lowest price we've seen: $50.00 on Nov 9 at eBay. Tracked across 3 stores since Nov 9.

From PayMore Northgate

  • 512GB microSDXC card with adapter
  • Speed class 30MB/s U3
  • C10 and V30 rated
  • A2 rated
  • Supports 4K video
Shipping
Free shipping in the USA (excludes AK, HI & U.S. territories)
In the box
microSDXC card, Adapter, Original box

About the onn 512GB C10 U3 V30 A2 microSDXC Flash Memory Card with Adapter

Effortlessly expand your device's storage capabilities. The onn 512 GB Class 10, U3, V30, A2 microSDXC Flash Memory Card gives your phone, camera, or other device the room it needs for photos, videos, apps, and files, without you having to delete anything to make space. 512 GB of storage holds approximately 91,040 20 MP photos or 29.5 hours of 4K Ultra HD video, varying by host device resolution and compression. The microSD card is compatible with smartphones, tablets, cameras, drones, computers, and gaming systems like the Nintendo Switch, Nintendo Switch Lite, and Nintendo Switch OLED, so one card can move between most of the devices you already own instead of buying a different card for each one. Rated Class 10, U3, this card delivers up to 100 MB/s read speed and 30 MB/s minimum write speed for moving files on and off the card, so you can shoot continuous photo bursts and record 4K Ultra HD video without dropped frames. Easily store & transfer high-resolution photo & video content across various devices. It includes a full-size SD adapter, so the same card also works in cameras, laptops, and card readers built for standard SD cards, no need to buy one separately. Expand your phone or tablet's photo library, add storage to your Nintendo Switch for more games and save files, back up files from your computer, or keep extra capacity on hand for your next drone flight. Built to withstand daily use, the microSD card is waterproof, shock proof, temperature proof, x-ray proof, and drop proof, so extreme conditions won't put your files at risk. Covered by onn's Limited Lifetime Warranty. Disclaimers: *For Flash Media Devices, 1 megabyte = 1 million bytes; 1 gigabyte = 1 billion bytes. Actual useable capacity may vary. Some of the listed capacity is used for formatting and other functions, and thus is not available for data storage. **Up to 100 MB/s read speed, 30 MB/s minimum write speed. Requires compatible host device capable of reaching such speeds. Performance and photo/video support (e.g. "Full HD") may vary depending on the host devices, user’s settings and configurations. †Based on internal and external testing. Results may vary based on user conditions, warranty terms and conditions apply. Waterproof:up to 30 mins submerged in water at a depth of up to 3.28 ft (1 m). Shock proof: up to 500 G of shock. Temperature proof: operation up to -25 c° ~ 85 c°. X-ray proof: up to 100 mGy from airport x-rays. Drop proof: up to 4.92 ft (1.5 m).

Specifications

Storage capacity
512 GBSource
Speed class
Class 10 U3Source
Video speed class
V30Source
App performance class
A2Source

Questions and answers

Is this card fast enough for 4K video?
Yes. The V30 rating guarantees a minimum 30 MB/s write speed, which covers standard 4K recording on most cameras and drones. Very high-bitrate or 8K footage may need a faster card.
Does it work in a Nintendo Switch?
Yes. The microSDXC format and A2 rating suit Switch, Switch Lite and Switch OLED game storage. Format the card in the console before use.
What is in the box?
The microSDXC card and a full-size SD adapter. The adapter lets you use it in cameras, laptops and card readers with standard SD slots.
How many photos or how much video does 512GB hold?
Roughly 91,000 20 MP photos or about 29.5 hours of 4K video, depending on the device and compression. Real figures vary by file size.
Is it waterproof and durable?
It is rated waterproof, shock resistant to 500 G, drop resistant to about 1.5 m and tolerant of -25°C to 85°C. That covers everyday accidents, not prolonged submersion.
Is it worth choosing over a premium brand card?
It offers more capacity for the money, but premium cards generally sustain faster writes and carry clearer warranties. Choose this for storage-heavy, speed-light use.
Where is the onn 512GB C10 U3 V30 A2 microSDXC Flash Memory Card with Adapter cheapest?
At eBay, for $50.00, 23% under what the other stores charge, as of our latest check.
What do buyers say about the onn 512GB C10 U3 V30 A2 microSDXC Flash Memory Card with Adapter?
Rated 5 out of 5 from 2 ratings.
Where can I buy the onn 512GB C10 U3 V30 A2 microSDXC Flash Memory Card with Adapter?
3 stores we checked sell it, including Walmart, eBay, PayMore Northgate.

Shoppers also compared

  • A
    ADATA High Endurance 512GB microSDXC Memory Card
    ADATA High Endurance 512GB microSDXC Memory Card
  • S
    SanDisk High Endurance microSDXC 512GB
    SanDisk High Endurance microSDXC 512GB
  • S
    SanDisk Extreme PRO microSDXC UHS-I Card 512GB
    SanDisk Extreme PRO microSDXC UHS-I Card 512GB
  • S
    Samsung PRO Endurance
    Samsung PRO Endurance
  • S
    Samsung Pro Endurance microSDXC Class 10 UHS-I U3 V30 100/40MB/s 256GB
    Samsung Pro Endurance microSDXC Class 10 UHS-I U3 V30 100/40MB/s 256GB
  • S
    Samsung 512GB High-Endurance microSDXC Memory Card
    Samsung 512GB High-Endurance microSDXC Memory Card
  • S
    Sandisk High Endurance
    Sandisk High Endurance
  • W
    WD Purple SC QD101 Ultra Endurance microSD Card 512GB
    WD Purple SC QD101 Ultra Endurance microSD Card 512GB

Stores we've priced the onn 512GB C10 U3 V30 A2 microSDXC Flash Memory Card with Adapter at

  • Walmart deals and prices

More from onn

  • O
    onn 65 in The Fresco Art Gallery 4K UHD Google TV with Gemini, Walnut Frame and Mounting Kit
    onn 65 in The Fresco Art Gallery 4K UHD Google TV with Gemini, Walnut Frame and Mounting Kit
  • O
    Onn 5.1.2 Surround Soundbar System with Dolby Atmos
    Onn 5.1.2 Surround Soundbar System with Dolby Atmos
  • O
    onn. 50" Class 4K UHD (2160p) LED Smart TV with Roku Streaming (100012587)
    onn. 50" Class 4K UHD (2160p) LED Smart TV with Roku Streaming (100012587)
  • O
    onn. 55" Class 4K UHD (2160p) LED Smart TV with Roku Streaming (100012588)
    onn. 55" Class 4K UHD (2160p) LED Smart TV with Roku Streaming (100012588)
  • O
    Onn 65" 4K Ultra HDR Smart LED Roku TV (100012587)
    Onn 65" 4K Ultra HDR Smart LED Roku TV (100012587)
  • O
    Onn. 75" 4K Ultra HD Frameless Smart LED Roku TV (100044717)
    Onn. 75" 4K Ultra HD Frameless Smart LED Roku TV (100044717)
  • O
    onn. 55" Class 4K UHD (2160p) LED Roku Smart TV
    onn. 55" Class 4K UHD (2160p) LED Roku Smart TV
  • O
    onn. 32" Class HD (720p) LED Roku Smart TV
    onn. 32" Class HD (720p) LED Roku Smart TV
All onn deals and products →

More microsd memory cards

  • P
    PNY Pro Elite microSDXC Class 10 UHS-I U3 V30 A2 100/90MB/s 512GB +Adapter
    PNY Pro Elite microSDXC Class 10 UHS-I U3 V30 A2 100/90MB/s 512GB +Adapter
  • S
    Samsung P9 Express 512GB microSDXC Memory Card
    Samsung P9 Express 512GB microSDXC Memory Card
  • S
    SanDisk GamePlay UHS-I microSDXC Card
    SanDisk GamePlay UHS-I microSDXC Card
  • K
    Kingston High Endurance microSDXC UHS-I Memory Card
    Kingston High Endurance microSDXC UHS-I Memory Card
  • S
    Samsung EVO Plus microSDXC Memory Card
    Samsung EVO Plus microSDXC Memory Card
  • P
    PNY Premier-X Class 10 U3 V30 microSDXC Flash Memory Card
    PNY Premier-X Class 10 U3 V30 microSDXC Flash Memory Card
  • S
    SanDisk 512GB High Endurance Video microSDXC Card with Adapter
    SanDisk 512GB High Endurance Video microSDXC Card with Adapter
  • S
    SanDisk 512GB High Endurance Video microSDXC Card With Adapter For Dash Cam and Home Monitoring Systems
    SanDisk 512GB High Endurance Video microSDXC Card With Adapter For Dash Cam and Home Monitoring Systems
Read speed
up to 100 MB/sSource
Minimum write speed
30 MB/sSource
Card format
microSDXCSource
Included adapter
full-size SD adapterSource
Shock resistance
up to 500 G of shockSource
Operating temperature
-25 c° ~ 85 c°Source
Drop resistance
up to 4.92 ft (1.5 m)Source
Color
Blue
Capacity
64 GB, 128 GB, 256 GB, 512 GB, 1 TB
Multipack Qty
2-pack