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Sony Walkman NW-A306 SD card requirements

Best SD Card for Sony Walkman NW-A306

Expert recommendations based on Sony Walkman NW-A306 specifications

Recommended Spec

microSD / microSDXC (Class 10 / U1 or faster)

The Walkman NW-A306 runs Android and takes microSD cards up to 2TB. An A1 or A2 card speeds up library scans and apps that store data on the card.

Official Sony Walkman NW-A306 SD Card Requirements

  • Format: microSD / microSDXC
  • Minimum Speed: Class 10 / U1 (10 MB/s write)
  • App Performance: A2 (Critical for Android) (Required for OS/Apps)
  • Maximum Capacity: Up to 2TB
Why these requirements? The NW-A306 runs Android with 32GB of internal storage. Music libraries go on the card, and Android scans it to build your library. An A1 or A2 card speeds up those scans and any streaming app that caches to the card.

Detailed Specifications

Type
microSD / microSDXC
Min Speed Class
Class 10 / U1
Write Speed
10 MB/s
Recommended Size
256GB, 512GB, 1TB
Max Capacity
2TB

Top SD Card Recommendations

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SD Card Verified Speed Class Write Speed Pros Price
SanDisk Extreme microSD V30 SD card - 45USD
SanDisk Extreme microSD
 Full Review 		V30 Up to 130 MB/s
  • V30 and A2 with fast writes
  • sold up to 1.5TB. Widely available
  • so easy to buy genuine.
 $ Check Price
Samsung PRO Plus microSD V30 SD card - 45USD
Samsung PRO Plus microSD
 Full Review 		V30 Up to 120 MB/s
  • V30 and A2 with 120 MB/s writes for 4K video and apps.
 $ Check Price
Lexar Professional Silver (1066x) V30 SD card - 45USD
Lexar Professional Silver (1066x)
 Full Review 		V30 Up to 120 MB/s
  • V30 card with 120 MB/s writes at a mid-range price.
 $ Check Price

Compare These Cards

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recommended
SanDisk Extreme microSD

SanDisk Extreme microSD

 $ · Mid-Range
  • UHS RatingUHS-I
  • Speed ClassV30
  • App PerformanceA2
  • Read SpeedUp to 190 MB/s
  • Write SpeedUp to 130 MB/s
  • EnduranceStandard
Available Capacities32GB, 64GB, 128GB, 256GB, 512GB, 1024GB, 1500GB

Pros

  • V30 and A2 with fast writes
  • sold up to 1.5TB. Widely available
  • so easy to buy genuine.

Cons

  • Write speeds are lower on the 32GB and 64GB versions.
View on Amazon
recommended
Samsung PRO Plus microSD

Samsung PRO Plus microSD

 $ · Mid-Range
  • UHS RatingUHS-I
  • Speed ClassV30
  • App PerformanceA2
  • Read SpeedUp to 160 MB/s
  • Write SpeedUp to 120 MB/s
  • EnduranceStandard
Available Capacities64GB, 128GB, 256GB, 512GB, 1024GB

Pros

  • V30 and A2 with 120 MB/s writes for 4K video and apps.

Cons

  • Costs more than the Samsung EVO Select.
View on Amazon
recommended
Lexar Professional Silver (1066x)

Lexar Professional Silver (1066x)

 $ · Mid-Range
  • UHS RatingUHS-I
  • Speed ClassV30
  • App PerformanceA2
  • Read SpeedUp to 160 MB/s
  • Write SpeedUp to 120 MB/s
  • EnduranceStandard
Available Capacities64GB, 128GB, 256GB, 512GB

Pros

  • V30 card with 120 MB/s writes at a mid-range price.

Cons

  • Needs a Lexar reader for the full 160 MB/s read speed.
View on Amazon

SanDisk Extreme microSD

The SanDisk Extreme microSD pairs V30 video speed with an A2 app rating and reads up to 190 MB/s. It covers 4K recording in drones and action cameras, game storage in handhelds, and app storage in phones. It is sold from 32GB to 1.5TB.

Target User: Smartphone, drone, and action camera users who want one reliable card for both 4K video and app storage
Best For: Action Cameras, Drones, Smartphones & Tablets, Mirrorless Cameras

Step up to the SanDisk Extreme PRO for higher sustained write speeds, or down to the Samsung EVO Select if 4K recording isn't a priority and price matters more.

Samsung PRO Plus microSD

The Samsung PRO Plus microSD reads up to 160 MB/s and writes up to 120 MB/s with V30 and A2 ratings. It handles 4K video in drones and action cameras and app storage in phones and handhelds.

Target User: Content creators, photographers, and videographers
Best For: Action Cameras, Mirrorless Cameras, DSLR Cameras, Smartphones & Tablets

Choose Samsung PRO Plus over competitors with similar V30 speed class for its superior thermal management and reliable durability.

Lexar Professional Silver (1066x)

The Lexar Professional Silver (1066x) microSD card offers excellent read and write performance at a mid-range price point making it a great value for vloggers, photographers, and gamers.

Target User: Content creators, photographers, and gamers
Best For: Action Cameras, Mirrorless Cameras, Smartphones & Tablets

Consider this card over others when you need high-speed V30 performance without breaking the bank.

Frequently Asked Questions

What SD Card Do I Need for Sony Walkman NW-A306?
The Sony Walkman NW-A306 takes a microSD / microSDXC card rated Class 10 / U1 or faster. 256GB or 512GB or 1TB covers most owners, and the maximum is 2TB. Buy SanDisk, Lexar, Samsung or Kingston from a reputable seller: counterfeit cards are the most common cause of lost files.
Why is my Sony Walkman NW-A306 slow?
Often the card. Android's media scan and app caches do many small random reads. A card with an A1 or A2 rating, such as the SanDisk Extreme, speeds that up.
What is the maximum microSD capacity for the Sony NW-A306?
2TB. Many owners use 1TB cards for large FLAC and hi-res libraries.
Is Class 10 / U1 required for Sony Walkman NW-A306?
Yes. Class 10 / U1 guarantees 10 MB/s of sustained write, which keeps the Sony Walkman NW-A306 free of slow loads, stutter, or write errors. For load times, the A2 (Critical for Android) app rating matters more.
What size SD card should I get for Sony Walkman NW-A306?
256GB covers light use; 1TB suits heavy use. The maximum is 2TB.
Can I use older or slower cards with Sony Walkman NW-A306?
Not below Class 10 / U1. Slower cards cause slow loads, stutter, or write errors. Check the card label for the Class 10 / U1 mark.
Does the brand matter for Sony Walkman NW-A306?
Yes. SanDisk, Lexar, Samsung and Kingston cards meet their rated speeds. Buy from the brand's store or a major retailer: counterfeit cards sold under those names are common on marketplaces.
What happens if I use the wrong card with Sony Walkman NW-A306?
A card slower than Class 10 / U1 causes slow loads, stutter, or write errors. A card over the maximum capacity or in the wrong format may not be recognized.
How long will an SD card last in Sony Walkman NW-A306?
Several years in normal use. Cards usually fail from wear or counterfeit flash, not age. Replace yours at the first write error, corrupted file or "card not recognized" message.

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