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MicroSD Memory Cards - UHS

Memory cards are a type of portable flash storage device that are commonly used in portable electronic devices such as digital cameras, some mobile phones and various handheld devices.

These MicroSD cards are segregated by their bus speed - either High Speed or Ultra High Speed (UHS) - this defines the maximum throughput speed of the card; UHS I or U1 - 104MB/s; UHS II or U2 - 312MB/s; and UHS III or U3 - 624MB/s.

They are then broken down into size groups - MicroSDHC (High Capacity up to 32GB ), MicroSDXC (Extended capacity up to 512GB) and are denoted with ‘speed class’ or ‘video class’ ratings of C10 or V10 (up to 10MB/s), V30 (up to 30MB/s), V60 (up to 60MB/s) and V90 (up to 90MB/s), which define their minimum sequential write speeds for higher performance cards.

Need help? Read our Memory Buying Guide

128GB SanDisk Ultra MicroSDXC Memory Card, A1 UHS-I Class 10 U1 C10, 100MB/s ReadSanDisk ULTRA 128GB MicroSDXC UHS-I Class 10 U1 667X Memory Card LN105857
Key Specifications
- 128GB SanDisk Ultra MicroSDXC Memory Card
- A1 UHS-I Class 10 U1 C10
- 100MB/s Read
Customer Review (20)
32GB SanDisk Ultra microSDHC+ SD Adapter, Class 10, Up to 120MB/s, Ideal for Smartphone/TabletsSanDisk 32GB Ultra Class 10 microSDHC Memory Card inc SD Adapter LN113283
Key Specifications
- 32GB SanDisk Ultra microSDHC+ SD Adapter
- Class 10
- Up to 120MB/s
- Ideal for Smartphone/Tablets
No customer review
£19.99
Finance options available when you spend over £99.00
ETA 1-3 days
64GB SanDisk Ultra Dual Drive Go 2-in-1 Flash Drive, USB 3.2 Gen 1 Type A / C, 300MB/s Read, SanDisk Memory Zone AppSanDisk Ultra Dual Drive Go 64GB Black USB Type A / C LN158048
Key Specifications
- 64GB SanDisk Ultra Dual Drive Go 2-in-1 Flash Drive
- USB 3.2 Gen 1 Type A / C
- 300MB/s Read
- SanDisk Memory Zone App
No customer review
Get it Tomorrow, 28 Oct
£21.98
Finance options available when you spend over £99.00
Get it Tomorrow, 28 OctIn stock
Get it Tomorrow, 28 Oct
64GB SanDisk Ultra MicroSDXC Memory Card, A1, UHS-I Class 1 (U1), Class 10, 140MB/s Read, SD Adapter IncludedSanDisk Ultra 64GB UHS A1 Performance Micro SDXC Memory Card SD Adapter Included LN148307
Key Specifications
- 64GB SanDisk Ultra MicroSDXC Memory Card
- A1
- UHS-I Class 1 (U1)
- Class 10
- 140MB/s Read
- SD Adapter Included
No customer review
Get it Tomorrow, 28 Oct
£23.99
Finance options available when you spend over £99.00
Get it Tomorrow, 28 OctIn stock
Get it Tomorrow, 28 Oct
New
32GB SanDisk Dash Cam MicroSDHC Memory Card, UHS-I, V30, 100MB/s Read, 40MB/s WriteSanDisk Dash Cam Card 32GB V30 microSDHC UHS-I SD Card LN175661
Key Specifications
- 32GB SanDisk Dash Cam MicroSDHC Memory Card
- UHS-I
- V30
- 100MB/s Read
- 40MB/s Write
No customer review
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32GB SanDisk Extreme MicroSDXC Memory Card, A2, UHS-I, Class 10, V30, 100MB/s Read & 60MB/s WriteSanDisk Extreme 32GB A2 V30 microSDXC UHS-I SD Card LN171473
Key Specifications
- 32GB SanDisk Extreme MicroSDXC Memory Card
- A2
- UHS-I
- Class 10
- V30
- 100MB/s Read & 60MB/s Write
No customer review
£25.99
Finance options available when you spend over £99.00
ETA 1-3 days
New
64GB SanDisk Dash Cam MicroSDXC Memory Card, UHS-I, V30, 100MB/s Read, 40MB/s WriteSanDisk Dash Cam Card 64GB V30 microSDXC UHS-I SD Card LN175662
Key Specifications
- 64GB SanDisk Dash Cam MicroSDXC Memory Card
- UHS-I
- V30
- 100MB/s Read
- 40MB/s Write
No customer review
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New
32GB SanDisk Extreme PRO MicroSDHC Memory Card, A1, UHS-I, U3, V30, 100MB/s Read, 90MB/s WriteSanDisk Extreme PRO 32GB A1 V30 microSDHC UHS-I SD Card LN175666
Key Specifications
- 32GB SanDisk Extreme PRO MicroSDHC Memory Card
- A1
- UHS-I
- U3
- V30
- 100MB/s Read
- 90MB/s Write
No customer review
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32GB SanDisk High Endurance, Class 10 U3, V30, 100MB/s Read & 40MB/s Write Performance microSDHC Memory CardSanDisk High Endurance 32GB microSDHC SD Card Class 10 U3 V30 LN100410
Key Specifications
- 32GB SanDisk High Endurance
- Class 10 U3
- V30
- 100MB/s Read & 40MB/s Write Performance microSDHC Memory Card
No customer review
£29.99
Finance options available when you spend over £99.00
Pre order
New Offer
64GB SanDisk Extreme PRO MicroSDXC Memory Card, A2, UHS-I, U3, V30, 200MB/s Read, 90MB/s WriteSanDisk Extreme PRO 64GB A2 V30 microSDXC UHS-I SD Card LN175667
Key Specifications
- 64GB SanDisk Extreme PRO MicroSDXC Memory Card
- A2
- UHS-I
- U3
- V30
- 200MB/s Read
- 90MB/s Write
No customer review
Get it Tomorrow, 28 Oct
Was: £32.99£29.99
Finance options available when you spend over £99.00
Get it Tomorrow, 28 OctIn stock
Get it Tomorrow, 28 Oct
128GB SanDisk Extreme MicroSDXC Memory Card, A2, UHS-I, Class 10, V30, 190MB/s Read & 130MB/s WriteSanDisk Extreme 128GB A2 V30 microSDXC UHS-I SD Card LN168034
Key Specifications
- 128GB SanDisk Extreme MicroSDXC Memory Card
- A2
- UHS-I
- Class 10
- V30
- 190MB/s Read & 130MB/s Write
No customer review
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128GB Samsung T7 MicroSDXC Memory Card, A2, UHS-I, U3, Class 10, V30, 170MB/s Read & 80MB/s WriteSamsung T7 128GB A2 V30 microSDXC UHS-I SD Card LN173355
Key Specifications
- 128GB Samsung T7 MicroSDXC Memory Card
- A2
- UHS-I
- U3
- Class 10
- V30
- 170MB/s Read & 80MB/s Write
No customer review
Get it Tomorrow, 28 Oct
£41.99
Finance options available when you spend over £99.00
Get it Tomorrow, 28 OctIn stock
Get it Tomorrow, 28 Oct
New
128GB SanDisk Dash Cam MicroSDXC Memory Card, UHS-I, V30, 100MB/s Read, 40MB/s WriteSanDisk Dash Cam Card 128GB V30 microSDXC UHS-I SD Card LN175663
Key Specifications
- 128GB SanDisk Dash Cam MicroSDXC Memory Card
- UHS-I
- V30
- 100MB/s Read
- 40MB/s Write
No customer review
£41.99
Finance options available when you spend over £99.00
Due 4th Nov
New
128GB SanDisk Extreme PRO MicroSDXC Memory Card, A2, UHS-I, U3, V30, 250MB/s Read, 120MB/s WriteSanDisk Extreme PRO 128GB A2 V30 microSDXC UHS-I SD Card LN175668
Key Specifications
- 128GB SanDisk Extreme PRO MicroSDXC Memory Card
- A2
- UHS-I
- U3
- V30
- 250MB/s Read
- 120MB/s Write
No customer review
Get it Tomorrow, 28 Oct
£43.99
Finance options available when you spend over £99.00
Get it Tomorrow, 28 OctIn stock
Get it Tomorrow, 28 Oct
128GB SanDisk Extreme PRO MicroSDXC Memory Card, UHS-I, 200MB/s Read, 90MB/s WriteSanDisk 128GB Extreme PRO Micro SD UHS-I Memory Card LN143680
Key Specifications
- 128GB SanDisk Extreme PRO MicroSDXC Memory Card
- UHS-I
- 200MB/s Read
- 90MB/s Write
Customer Review (1)
£45.98
Finance options available when you spend over £99.00
ETA 1-3 days
Samsung Sonic PRO Plus 128GB microSDXC Memory Card, UHS-I, U3, V30, A2, Included Adapter, Wear Resistant, WaterproofSamsung 128GB MicroSD Sonic PRO Plus Memory Card with SD Adapter - Knuckles LN157908
Key Specifications
- Samsung Sonic PRO Plus 128GB microSDXC Memory Card
- UHS-I
- U3
- V30
- A2
- Included Adapter
- Wear Resistant
- Waterproof
Customer Review (1)
128GB Samsung T9 MicroSDXC Memory Card, A2, UHS-I, U3, Class 10, V30, 170MB/s Read & 130MB/s WriteSamsung T9 128GB A2 V30 microSDXC UHS-I SD Card LN173352
Key Specifications
- 128GB Samsung T9 MicroSDXC Memory Card
- A2
- UHS-I
- U3
- Class 10
- V30
- 170MB/s Read & 130MB/s Write
No customer review
£51.49
Finance options available when you spend over £99.00
ETA 1-3 days
256GB SanDisk Ultra Dual Drive Go 2-in-1 Flash Drive, USB 3.2 Gen 1 Type A / C, 400MB/s Read, SanDisk Memory Zone ASanDisk Ultra Dual Drive Go 256GB Black USB Type A / C LN158049
Key Specifications
- 256GB SanDisk Ultra Dual Drive Go 2-in-1 Flash Drive
- USB 3.2 Gen 1 Type A / C
- 400MB/s Read
- SanDisk Memory Zone A
Customer Review (2)
£53.99
Finance options available when you spend over £99.00
ETA 1-3 days
256GB SanDisk Ultra MicroSDXC Memory Card, A1 UHS-I Class 10, 150MB/s Read, Included AdapterSanDisk Ultra 256GB Performance A1 microSDXC SD Card with Adapter LN158135
Key Specifications
- 256GB SanDisk Ultra MicroSDXC Memory Card
- A1 UHS-I Class 10
- 150MB/s Read
- Included Adapter
No customer review
£59.99
Finance options available when you spend over £99.00
Pre order
256GB SanDisk GamePlay MicroSD Card, Class U3 / V30 / A2, 190MB/s Read,130MB/s WriteSanDisk Gameplay 256GB 4K Ready MicroSDXC Card UHS-I U3 for Mobile and Handheld Console Gaming LN168535
Key Specifications
- 256GB SanDisk GamePlay MicroSD Card
- Class U3 / V30 / A2
- 190MB/s Read
- 130MB/s Write
No customer review
£63.98
Finance options available when you spend over £99.00
ETA 1-3 days
256GB Samsung T7 MicroSDXC Memory Card, A2, UHS-I, U3, Class 10, V30, 170MB/s Read & 130MB/s WriteSamsung T7 256GB A2 V30 microSDXC UHS-I SD Card LN173349
Key Specifications
- 256GB Samsung T7 MicroSDXC Memory Card
- A2
- UHS-I
- U3
- Class 10
- V30
- 170MB/s Read & 130MB/s Write
No customer review
Get it Tomorrow, 28 Oct
£64.49
Finance options available when you spend over £99.00
Get it Tomorrow, 28 OctIn stock
Get it Tomorrow, 28 Oct
256GB Samsung T9 MicroSDXC Memory Card, A2, UHS-I, U3, Class 10, V30, 170MB/s Read & 130MB/s WriteSamsung T9 256GB A2 V30 microSDXC UHS-I SD Card LN173353
Key Specifications
- 256GB Samsung T9 MicroSDXC Memory Card
- A2
- UHS-I
- U3
- Class 10
- V30
- 170MB/s Read & 130MB/s Write
No customer review
£80.48
Finance options available when you spend over £99.00
Pre order
New
256GB SanDisk Dash Cam MicroSDXC Memory Card, UHS-I, V30, 100MB/s Read, 40MB/s WriteSanDisk Dash Cam Card 256GB V30 microSDXC UHS-I SD Card LN175664
Key Specifications
- 256GB SanDisk Dash Cam MicroSDXC Memory Card
- UHS-I
- V30
- 100MB/s Read
- 40MB/s Write
No customer review
£85.99
Finance options available when you spend over £99.00
Due 4th Nov
New
256GB SanDisk Extreme PRO MicroSDXC Memory Card, A2, UHS-I, U3, V30, 250MB/s Read, 170MB/s WriteSanDisk Extreme PRO 256GB A2 V30 microSDXC UHS-I SD Card LN175669
Key Specifications
- 256GB SanDisk Extreme PRO MicroSDXC Memory Card
- A2
- UHS-I
- U3
- V30
- 250MB/s Read
- 170MB/s Write
No customer review
Get it Tomorrow, 28 Oct
£85.99
Finance options available when you spend over £99.00
Get it Tomorrow, 28 OctIn stock
Get it Tomorrow, 28 Oct
256GB SanDisk Extreme PRO MicroSDXC Memory Card, UHS Speed Class 3 (U3), Video Speed Class 30(V30), 200MB/s R, 140MB/s WSanDisk 256GB Extreme PRO Micro SD UHS-I Memory Card LN163267
Key Specifications
- 256GB SanDisk Extreme PRO MicroSDXC Memory Card
- UHS Speed Class 3 (U3)
- Video Speed Class 30(V30)
- 200MB/s R
- 140MB/s W
No customer review
£89.99
Finance options available when you spend over £99.00
ETA 1-3 days
512GB Samsung T7 MicroSDXC Memory Card, A2, UHS-I, U3, Class 10, V30, 170MB/s Read & 130MB/s WriteSamsung T7 512GB A2 V30 microSDXC UHS-I SD Card LN173350
Key Specifications
- 512GB Samsung T7 MicroSDXC Memory Card
- A2
- UHS-I
- U3
- Class 10
- V30
- 170MB/s Read & 130MB/s Write
No customer review
Get it Tomorrow, 28 Oct
£125.99
Get it Tomorrow, 28 OctIn stock
Get it Tomorrow, 28 Oct
512GB Samsung T9 MicroSDXC Memory Card, A2, UHS-I, U3, Class 10, V30, 170MB/s Read & 130MB/s WriteSamsung T9 512GB A2 V30 microSDXC UHS-I SD Card LN173354
Key Specifications
- 512GB Samsung T9 MicroSDXC Memory Card
- A2
- UHS-I
- U3
- Class 10
- V30
- 170MB/s Read & 130MB/s Write
No customer review
£157.49
ETA 1-3 days
New
512GB SanDisk Dash Cam MicroSDXC Memory Card, UHS-I, V30, 100MB/s Read, 40MB/s WriteSanDisk Dash Cam Card 512GB V30 microSDXC UHS-I SD Card LN175665
Key Specifications
- 512GB SanDisk Dash Cam MicroSDXC Memory Card
- UHS-I
- V30
- 100MB/s Read
- 40MB/s Write
No customer review
£179.99
Due 4th Nov
New
512GB SanDisk Extreme PRO MicroSDXC Memory Card, A2, UHS-I, U3, V30, 250MB/s Read, 170MB/s WriteSanDisk Extreme PRO 512GB A2 V30 microSDXC UHS-I SD Card LN175670
Key Specifications
- 512GB SanDisk Extreme PRO MicroSDXC Memory Card
- A2
- UHS-I
- U3
- V30
- 250MB/s Read
- 170MB/s Write
No customer review
Get it Tomorrow, 28 Oct
£195.98
Get it Tomorrow, 28 OctIn stock
Get it Tomorrow, 28 Oct
1TB Samsung MB-MC1T0SA/EU EVO Plus MicroSD Card, Class U3/V30/A2, 160MB/s Read, Adapter IncludedSamsung EVO Plus 1TB MicroSDXC Card UHS-I U3 with SD Adapter LN154186
Key Specifications
- 1TB Samsung MB-MC1T0SA/EU EVO Plus MicroSD Card
- Class U3/V30/A2
- 160MB/s Read
- Adapter Included
Customer Review (2)
Get it Tomorrow, 28 Oct
£203.99
Get it Tomorrow, 28 OctIn stock
Get it Tomorrow, 28 Oct
1TB Samsung T7 MicroSDXC Memory Card, A2, UHS-I, U3, Class 10, V30, 170MB/s Read & 130MB/s WriteSamsung T7 1TB A2 V30 microSDXC UHS-I SD Card LN173351
Key Specifications
- 1TB Samsung T7 MicroSDXC Memory Card
- A2
- UHS-I
- U3
- Class 10
- V30
- 170MB/s Read & 130MB/s Write
No customer review
£251.99
ETA 1-3 days
1TB SanDisk Ultra Dual Drive Go 2-in-1 Flash Drive, USB 3.2 Gen 1 Type A / C, 400MB/s Read, SanDisk Memory Zone ASanDisk Ultra Dual Drive Go 1TB Black USB Type A / C LN158050
Key Specifications
- 1TB SanDisk Ultra Dual Drive Go 2-in-1 Flash Drive
- USB 3.2 Gen 1 Type A / C
- 400MB/s Read
- SanDisk Memory Zone A
No customer review
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New
1TB SanDisk Extreme PRO MicroSDXC Memory Card, A2, UHS-I, U3, V30, 250MB/s Read, 170MB/s WriteSanDisk Extreme PRO 1TB A2 V30 microSDXC UHS-I SD Card LN175671
Key Specifications
- 1TB SanDisk Extreme PRO MicroSDXC Memory Card
- A2
- UHS-I
- U3
- V30
- 250MB/s Read
- 170MB/s Write
No customer review
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New
2TB SanDisk Extreme PRO MicroSDXC Memory Card, A2, UHS-I, U3, V30, 250MB/s Read, 150MB/s WriteSanDisk Extreme PRO 2TB A2 V30 microSDXC UHS-I SD Card LN175672
Key Specifications
- 2TB SanDisk Extreme PRO MicroSDXC Memory Card
- A2
- UHS-I
- U3
- V30
- 250MB/s Read
- 150MB/s Write
No customer review
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