Students
Most students use Micro SD cards for lecture recordings, PDFs, assignments, and course content. A 64 GB or 128 GB card priced around Tk 1,100 to Tk 3,500 is usually enough, and U1 is fine for this use.
Example Area
Memory Card Price in Bangladesh
Running out of storage is a common problem for smartphone users, photographers, gamers, and security camera owners in Bangladesh. A memory card solves it quickly and affordably.
At Ryans, memory cards range from Tk 1,100 to Tk 25,900, from a basic 32 GB Micro SD for students to a 512 GB professional SD card for videographers and content creators.
Brands on this page include SanDisk, Kingston, Transcend, ADATA, Apacer, Patriot, and TwinMOS, all with genuine warranty coverage through authorized distributors. The right choice depends on card type, capacity, speed class, and durability, not just brand.
Who Buys Memory Cards in Bangladesh
Smartphone Users
For phones, 128/256 GB with U3 / A2 is a strong balance. It gives enough space for apps, photos, videos, music, and offline content, while also supporting smooth app storage and Full HD recording.
Best Practical Fit
Photographers and Videographers
DSLR and mirrorless users should buy full-size SD cards with strong sustained write speed. For RAW bursts, look for 50 MB/s+ write speed and U3. For 4K, V30 is the minimum. For 8K or high-frame-rate work, V60 or V90 cards from SanDisk Extreme Pro or Kingston Canvas React Plus are more appropriate.
Gamers
Nintendo Switch users should look at 256 GB to 512 GB Micro SD with 150 MB/s+ read speed, plus U3 and A2 for better game storage and access performance.
Example Area
Drones and Action Camera Users
GoPro and DJI users need Micro SD cards with A2, U3, waterproof and shockproof protection, plus around 50 MB/s or higher write speed. 128 GB to 256 GB is usually the most practical range.
Security Camera Users
For CCTV, IP cameras, and NVR-supported local storage, high-endurance Micro SD is the only sensible choice. Standard cards wear out too quickly under 24/7 recording. A 128 GB to 256 GB high-endurance card can handle weeks of 1080p footage and last much longer in continuous use.
How to Choose the Right Memory Card
Four things matter most: card type, capacity, speed class, and durability. Get those right and you avoid full storage, dropped recordings, and corrupted files.
01
Confirm Your Card Type
Micro SD and full-size SD are not interchangeable unless you use an adapter. Most smartphones, drones, action cameras, and security cameras use Micro SD. Most DSLR and mirrorless cameras use full-size SD. Always check your device before buying.
02
Choose the Right Capacity
For basic phone storage, 64 GB is a practical minimum in 2025. For 4K cameras, drones, or Nintendo Switch, 128 GB to 256 GB is the sweet spot. For 24/7 security camera recording, 256 GB to 512 GB makes more sense.
03
Match Speed Class to Your Use
For Full HD and regular photos, U1 is enough. For 4K recording, choose at least U3 or V30. For 8K or higher-bitrate professional work, look at V60 or V90. A slow card in a 4K device can stop recording completely.
04
Think About Durability and Warranty
In Bangladesh, heat, humidity, vehicles, and outdoor use make durability important. Features like waterproof, temperature resistant, and high-endurance matter in these conditions. Warranty on this page ranges from 3 years to lifetime, depending on the brand and series.
Micro SD vs Full-Size SD Card
The first filter on this page is card type. Here is a complete side-by-side comparison to help you pick the right format:
| Feature | Micro SD Card | SD Card (Full Size) |
|---|---|---|
| Physical Size | 11 × 15 mm (tiny) | 24 × 32 mm (standard) |
| Used In | Smartphones, Action Cameras, Drones, Security Cameras, Nintendo Switch | DSLR, Mirrorless Cameras, Camcorders, Laptops |
| Adapter Needed? | Optional — some sold with SD adapter included | No — slots directly into device |
| Capacity Range | 32 GB to 512 GB (SDHC / SDXC) | 32 GB to 512 GB (SDHC / SDXC) |
| Bus Standard | UHS-I, UHS-II (with compatible adapter/device) | UHS-I, UHS-II, UHS-III |
| Speed Class Support | U1, U3, V30, A1, A2 | U1, U3, V30, V60, V90 |
| 4K / 8K Recording | 4K supported (U3/V30+); 8K on select cards | 4K and 8K with V60/V90 cards |
| Best For | Mobile, portable, and everyday use | Professional photography and video |
Storage Capacity: Which Size Do You Actually Need?
Capacity is the most searched filter on any memory card page. The right size depends on what you store, how often you clear the card, and how long you want to go between transfers.
| Capacity | Max Read Speed | Max Write Speed | Best Use Case |
|---|---|---|---|
| 32 GB | Up to 90–120 MB/s | Up to 20–25 MB/s | Students, document storage, basic phone expansion |
| 64 GB | Up to 100–140 MB/s | Up to 25–35 MB/s | Full HD video, music libraries, social media content |
| 128 GB | Up to 150 MB/s | Up to 40–50 MB/s | 4K video recording, Nintendo Switch, heavy phone use |
| 256 GB | Up to 190 MB/s | Up to 80 MB/s | RAW photography, long-form 4K–8K, drone footage |
| 512 GB | Up to 200 MB/s | Up to 80 MB/s | 24/7 surveillance, professional video, large game libraries |
Memory Card Speed Class Quick Guide
Choose speed class based on how you will use the card. For basic phone storage and Full HD video, U1 is enough. For 4K video, drones, action cameras, and faster shooting, choose U3 or V30. For professional 8K, high-bitrate video, or heavy burst photography, V60 or V90 is the safer choice.
U1
Full HD video, regular photos, basic phone storage
U3 / V30
4K video, drones, action cameras, faster shooting
V60 / V90
8K, high-bitrate video, professional camera work
A1 / A2
Better app performance on smartphones and portable devices
Durability Features
Waterproof
Better for action cameras, outdoor drones, and exposed use.
Shockproof
Better for travel, fieldwork, and rough handling.
Temperature Resistant
Better for CCTV, vehicles, and outdoor environments.
X-ray Resistant
Useful for frequent travelers and photographers.
High-Endurance
Best for 24/7 security cameras and dashcams.
Top Memory Card Brands in BD
All brands on this page are available at Ryans through authorized distributors. Here is a practical breakdown by brand to help you choose based on use case, warranty, and value tier:
| Brand | Key Series | Best Use | Warranty | Tier |
|---|---|---|---|---|
| SanDisk | Ultra, Extreme, Extreme Pro | Smartphones, cameras, drones, surveillance | Lifetime / 10 Yr | High |
| Kingston | Canvas Select+, Canvas Go!+, Canvas React+ | Cameras, smartphones, action cams | Lifetime | High |
| Transcend | 300S, 500S, 700S, High Endurance | Cameras, dashcams, surveillance | 5 Year | High |
| ADATA | Premier, Premier Pro, UHS-I series | Smartphones, tablets, action cams | 5 Year | Medium |
| Apacer | MicroSD series | Smartphones, everyday use | 3 Year | Budget |
| Patriot | EP Series, LX Series | Smartphones, cameras, gaming | 3 Year | Budget |
| TwinMOS | MicroSD series | Smartphones, basic everyday storage | 3 Year | Budget |
Memory Card Price Range in Bangladesh
Memory card prices at Ryans range from Tk 1,100 to Tk 25,900. Here is what each price tier actually delivers:
| Price Range | Typical Capacity | Brands | Who It Suits |
|---|---|---|---|
| Tk 1,100 – 2,500 | 32–64 GB | Apacer, TwinMOS, ADATA | Students, casual smartphone users, basic storage expansion |
| Tk 2,500 – 5,000 | 64–128 GB | Kingston, Transcend, ADATA | Full HD video, gaming, moderate photo storage, U3 speed class |
| Tk 5,000 – 10,000 | 128–256 GB | SanDisk, Kingston, Transcend | 4K-ready cameras, drones, high-endurance surveillance |
| Tk 10,000 – 25,900 | 256–512 GB | SanDisk Extreme Pro, Kingston Canvas React+ | Professional video (V30–V90), 8K, 190–200 MB/s read speeds |
What to Check Before You Buy Memory Card
Fake Capacity and Counterfeit Cards
Counterfeit cards are a major risk in Bangladesh. A fake 128 GB card may hold only a small fraction of that before corrupting data. Buying from an authorized seller like Ryans is the safest way to avoid this.
Slow Performance and Buffering
A high-capacity card with a low speed class can still fail during recording. Always check write speed and video class, not just the big read-speed number on the front of the package.
Data Loss and Corruption
Most corruption happens when a card is removed while writing, when a fake card exceeds its real capacity, or when a normal card is used for constant surveillance writing.
Durability and Lifespan
Standard consumer cards usually handle 3,000 to 10,000 write cycles. For surveillance, use high-endurance cards instead.
Brand Trust and Authenticity
Memory cards are among the most counterfeited tech items in Bangladesh. A very cheap “Extreme Pro” is usually not genuine.
Price vs Value
For students and normal smartphone users, Tk 1,500 to Tk 3,500 is enough. Spending more than Tk 5,000 only makes sense when you need stronger speed or endurance.
Reliability for Professional Use
Professional users need cards that can handle heat, physical use, and repeated fast read/write cycles without failure.
Warranty and File Recovery
Warranty covers product defects and failure, not lost data, so important files should always be backed up. Some premium cards also include access to data recovery software.
Frequently Asked Questions
How much storage capacity do I actually need?+
For basic phone use and documents, 64 GB is enough. For heavier photo, video, or gaming use, 128 GB to 256 GB is more practical. For professional work, surveillance, or large game libraries, 256 GB to 512 GB makes more sense.
What is the difference between a Micro SD card and an SD card?+
Micro SD is the smaller format used in phones, drones, action cameras, and security cameras. Full-size SD is mainly used in DSLR, mirrorless cameras, and some laptops. Some Micro SD cards include an adapter so they can also work in full-size SD slots.
What do U1, U3, V30, and A2 mean?+
U1 and U3 show minimum write speed. V30, V60, and V90 are video speed classes for recording work. A1 and A2 relate to app performance, with A2 being faster. For 4K recording, U3 + V30 is the minimum.
Will this memory card work in my phone or camera?+
That depends on card type, SDXC support, UHS support, and maximum supported capacity. Check your device manual or manufacturer page first. Ryans can also help confirm compatibility.
Which memory card is best for 4K video recording?+
At minimum, choose a card with U3, V30, and at least 30 MB/s sustained write speed. For higher-bitrate or 8K work, look at V60 or V90 cards with stronger write speed.
Can a memory card lose data or get corrupted?+
Yes. This usually happens because of unsafe removal, counterfeit cards, or using a normal card for too much continuous recording. Buying genuine, ejecting properly, and keeping backups reduces the risk.
How long do memory cards usually last?+
In normal phone, camera, or gaming use, a good memory card can last 5 to 10 years or more. High-endurance surveillance cards are built for continuous 24/7 recording and can last several years even under that heavier load.
Is the memory card sold at Ryans covered by an official warranty?+
Yes. Every card sold at Ryans is sourced from authorized distributors and includes the brand’s official warranty, from 3 years to lifetime, depending on the series.
Where to buy a memory card with an official warranty in Bangladesh?+
Ryans is an authorized retailer for SanDisk, Kingston, Transcend, ADATA, Apacer, Patriot, and TwinMOS. You can buy online or from Ryans stores across Bangladesh with official warranty support.
