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Memory Cards for Phones

Memory cards for phones can expand the storage space of your mobile phone many times over. So you can fit a lot more music, pictures, videos and apps on your mobile phone. Currently, only microSD cards are used. The class, speed and capacity of the phone memory card should be taken into account when choosing your phone memory card.

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Type and Capacity of Memory Cards for Phones

MicroSD memory card for a phone is a reduced format derived from SD cards for phones. Due to the need for more capacity, newer generations of microSDHC (Secure Digital High Capacity) and microSDXC (Secure Digital eXtended Capacity) were created. The physical dimensions of these versions are the same as microSD.

  • MicroSD cards - capacity of 8MB to 2GB. People shun them these days because of insufficient capacity.
  • MicroSDHC cards - capacity of 4 to 32GB. This is a commonly used standard.
  • MicroSDXC cards - capacity of 64GB to 2TB (potential maximum. So far, we have 512GB at most).

Beware of Backward Compatibility Between Generations of Memory Cards for Phones

Not all memory cards for phones are interchangeable. Devices that are made with only microSDHC card support will not "see" (read) a microSDXC card. So, before buying a memory card for a phone, whether it is a micro SDXC card or another version, make sure you know what type of card your device supports and what maximum capacity it can handle. Of course, devices that support microSDXC cards also support the older microSDHC and microSD cards.

Read and Write Speeds of Memory Cards for Phones

Memory cards for phones are divided according to speed class (referred to as "class"). The class number indicates the minimum guaranteed write speed of the phone memory card. In practice, the read speed is always equal to or faster than the write speed.

Class Logo Min write speed Suitable for
Class 4 4MB/s HD video recording
Class 6 6MB/s HD video recording
Class 10 10MB/s Full HD video recording
UHS-1 10MB/s Real-time video streaming. 
Recording of long HD videos
UHS-3 30MB/s 4K video recording

The speed of the SD card affects not only how well it can record video, but also how quickly you can save photos and open apps. We recommend using at least a Class 10 memory phone card that can record Full HD video and whose effect on the phone's response will be almost imperceptible.

Memory 

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110 Results
Samsung T7 MicroSDXC 128GB
Memory Card micro SDXC, 128GB, read speed up to 170MB/s, Class 10, UHS-I, U3, V30, A2
Buy with code ALZADNI10 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 10 % s kódom ALZADNI10. Kliknite a kód sa uplatní automaticky. 40.41 €
New arrival 44.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SASD016h5b2
Samsung T9 MicroSDXC 256GB
Memory Card micro SDXC, 256GB, read speed up to 200MB/s, write speed up to 130MB/s, Class 10, UHS-I, U3, V30, A2
Buy with code ALZADNI20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky. 66.32 €
New arrival 82.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SASD016h5d3
Samsung T9 MicroSDXC 512GB
Memory Card micro SDXC, 512GB, read speed up to 200MB/s, write speed up to 130MB/s, Class 10, UHS-I, U3, V30, A2
Buy with code ALZADNI20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky. 135.92 €
New arrival 169.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SASD016h5d4
Samsung T7 MicroSDXC 512GB
Memory Card micro SDXC, 512GB, read speed up to 170MB/s, Class 10, UHS-I, U3, V30, A2
Buy with code ALZADNI25 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 25% s kódom ALZADNI25. Kliknite a kód sa uplatní automaticky. 104.93 €
New arrival 139.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: SASD016h5b4
ADATA MicroSDXC 512GB Premier Extreme
Memory Card micro SD and MicroSD Express, 512GB, read speed up to 800MB/s, write speed up to 700MB/s, V30
180.79 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: DU019w2n8c2
Samsung T9 MicroSDXC 128GB
Memory Card micro SDXC, 128GB, read speed up to 200MB/s, write speed up to 130MB/s, Class 10, UHS-I, U3, V30, A2
Buy with code ALZADNI20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky. 42.32 €
New arrival 52.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SASD016h5d2
4.8 597×
SANDISK microSDXC 1TB Extreme PRO + Rescue PRO Deluxe + SD adapter
Memory Card micro SDXC and micro SD, 1000GB, read speed up to 200MB/s, write speed up to 140MB/s, Class 10, UHS-I, U3, V30, A2
-4 % off new 247.90 € New 260.79 €
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: DU828a5a5
4.9 53×
SANDISK MicroSD Express 256GB Nintendo Switch 2 (NVMe)
Memory Card micro SD and MicroSD Express, 256GB, read speed up to 880MB/s, write speed up to 480MB/s
-5 % off new 55.90 € New 58.90 €
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: NS2HW111
Samsung T7 MicroSDXC 1TB
Memory Card micro SDXC, 1000GB, read speed up to 170MB/s, Class 10, UHS-I, U3, V30, A2
Buy with code ALZADNI25 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 25% s kódom ALZADNI25. Kliknite a kód sa uplatní automaticky. 209.93 €
New arrival 279.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SASD016h5b5
4.7 80×
ADATA MicroSDXC 512GB High Endurance + SD adapter
Memory Card micro SDXC and micro SD, 512GB, read speed up to 100MB/s, write speed up to 85MB/s, Class 10, U3, V30, A2
101.29 €
Buy
In stock > 5 pcs
Order Code: DU019w2n8f4
5.0 24×
Kingston MicroSDXC Endurance 256GB
Memory Card micro SDXC and micro SD, 256GB, read speed up to 95MB/s, write speed up to 45MB/s, Class 10
83.59 €
Buy
In stock 2 pcs
Order Code: DU029a24a
4.8 1,458×
SANDISK MicroSDXC Ultra 64GB + SD adapter
Memory Card micro SDXC and micro SD, 64GB, read speed up to 140MB/s, Class 10, UHS-I, U1, A1
-3 % off new 20.90 € New 21.69 €
Buy
Unsealed - in stock 1 pcs
Order Code: DT807j2f2ba1
4.8 597×
SANDISK microSDXC 512GB Extreme PRO + Rescue PRO Deluxe + SD adapter
Memory Card micro SDXC and micro SD, 512GB, read speed up to 200MB/s, write speed up to 140MB/s, Class 10, UHS-I, U3, V30, A2
-2 % off new 145.90 € New 150.09 €
Buy
Unsealed - in stock 2 pcs
Order Code: DU828a5a4
4.8 1,459×
SANDISK MicroSDXC Ultra 256GB + SD adapter
Memory Card micro SDXC and micro SD, 256GB, read speed up to 150MB/s, Class 10, UHS-I, U1, A1
-5 % off new 49.90 € New 52.69 €
Buy
Unsealed - in stock 2 pcs
Order Code: DT807j2f2ba5
4.9 774×
SANDISK microSDXC 256GB Extreme + Rescue PRO Deluxe + SD adapter
Memory Card micro SDXC and micro SD, 256GB, read speed up to 190MB/s, write speed up to 130MB/s, Class 10, UHS-I, U3, V30, A2
64.90 €
Buy
Unsealed - in stock 1 pcs
Order Code: DU828a2a3
4.9 774×
SANDISK microSDXC 512GB Extreme + Rescue PRO Deluxe + SD adapter
Memory Card micro SDXC and micro SD, 512GB, read speed up to 190MB/s, write speed up to 130MB/s, Class 10, UHS-I, U3, V30, A2
-7 % off new 118.90 € New 127.99 €
Buy
Unsealed - in stock 2 pcs
Order Code: DU828a2a4
4.8 1,458×
SANDISK Ultra microSD 512GB + SD adapter
Memory Card micro SDXC and micro SD, 512GB, read speed up to 150MB/s, Class 10, UHS-I, U1, A1
-4 % off new 96.90 € New 101.39 €
Buy
Unsealed - in stock 1 pcs
Order Code: DT807j2f2ba3
4.9 240×
SANDISK MicroSDXC 128GB Nintendo Switch UHS-I (V30) U3
Memory Card micro SDXC and micro SD, 128GB, read speed up to 100MB/s, write speed up to 90MB/s, UHS-I, U3, V30, A1
-6 % off new 36.90 € New 39.39 €
Buy
Unsealed - in stock 1 pcs
Order Code: DT809n2
4.8 1,458×
SANDISK Ultra microSD 512GB + SD adapter
Memory Card micro SDXC and micro SD, 512GB, read speed up to 150MB/s, Class 10, UHS-I, U1, A1
-10 % off new 90.90 € New 101.39 €
Buy
As good as new - in stock 1 pcs
Order Code: DT807j2f2ba3
4.9 240×
SANDISK microSDXC 512GB Nintendo Switch
Memory Card micro SDXC and micro SD, 512GB, read speed up to 100MB/s, write speed up to 90MB/s, UHS-I, U3, V30, A1
-13 % off new 137.90 € New 158.69 €
Buy
As good as new - in stock 1 pcs
Order Code: DT809n4
5.0
Samsung MicroSDXC 512GB P9 Express
Memory Card micro SDXC, micro SD and MicroSD Express, 512GB, read speed up to 800MB/s, Class 10, UHS-I, U3, V30, A1
127.90 €
Buy
In stock 3 pcs
Order Code: SASD016n4
4.9 111×
ADATA Premier MicroSDXC 128GB UHS-I Class 10 + SD Adapter
Memory Card micro SDXC and micro SD, 128GB, read speed up to 85MB/s, write speed up to 25MB/s, Class 10, UHS-I, V10Video Class 10
Amazing Deal 23.89 € Save 10.61 €
Buy
On the way > 5 pcs
Expected 15/06/2026
Order Code: DU019w2n8b8
4.9 111×
ADATA Premier micro SDXC 64GB UHS-I A1 Class 10 + SD adapter
Memory Card micro SDXC and micro SD, 64GB, read speed up to 85MB/s, write speed up to 25MB/s, Class 10, U1, V10Video Class 10, A1
15.09 €
Buy
On the way > 5 pcs
Expected 15/06/2026
Order Code: DU019w2l76
4.8 68×
Kingston MicroSDXC 512GB Canvas Select Plus Gen 3 + SD Adapter
Memory Card micro SDXC and micro SD, 512GB, read speed up to 150MB/s, write speed up to 90MB/s, Class 10, UHS-I, U3, V30, A1
83.69 €
Buy
On the way > 5 pcs
Expected 15/06/2026
Order Code: DU007s8j94c4
In the category Memory Cards for Phones on Alza.sk, we currently have a total of 110 products, which you can easily buy online and get quickly delivered. See all of your purchases and make orders on our easy-to-use app.
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