512GB - Samsung EVO Select microSDXC UHS-I U3 130MB/s FHD & 4K Memory Card inc. SD-Adapter £40.49/256GB - £19.29 /128GB - £12.59 @ Amazon

Cheapest recorded price as per HUKD (Post).... I think

All the space you need
The smarter choice. Enhanced speed and compatibility deliver dependable performance. Huge capacity lets you store tons of media on your phone, load your handheld console with games, or download more apps on your tablet. Top-notch speed makes transfers seamless with trusted reliability.

Fast and smooth
Tackle big tasks with ease. Even with huge files, the EVO Select is reliably quick with superfast U3, class 10 rated transfer speeds of up to 130MB/s.¹ ² Big apps load and run smoothly, while 4K video stays flawless with A2, V30, and UHS-I Interface.³ 4

Expand and store big
Free your phone from limits. Find your perfect fit from 64GB, 128GB, 256GB, or an enormous 512GB. With so many sizes, all your needs are fully covered. No more worrying about storage—there's space for all your memories.5 6 7 8 9

protected
You're fully protected
6-proof peace of mind. The EVO Select takes on life’s adventures with water10, temperature11, X-ray12, magnet13, drop14, and wearout15-proof protection. Your irreplaceable experiences deserve the reliable choice.

¹ Speed and rating apply to 128GB, 256GB and 512GB cards. 64GB card is U1 rated, with transfer speeds of up to 130MB/s.

² Stated performance is achieved by using EVO Select microSD cards with Samsung readers.

³ Ratings apply to 128GB and 256GB cards. 32GB and 64GB card is A1, V10, UHS-I rated.

4 The foregoing read & write speeds are based on internal tests conducted under controlled conditions. Actual speeds may vary depending upon card capacity.

5 Test Device : Samsung Note Ultra

6 4K Video (3840*2160) 30fps (Video size 30Min 7.93 GB)

7 FHD Video (1920*1080) 30fps (Video size 30Min 2.95 GB)

8 Image 4000*3000 (Avg Pic size 2.36 MB)

9 Image 4000*1868 (Avg Pic size 1.81 MB)

¹0 Water proof: withstand up to 72 hours in seawater.11 Temperature proof: operating temperatures of -25 C to 85 C; non-operating temperatures of -40 C to 85 C. 12 X-Ray Proof: up to 100mGy, equal to airport X-ray machines. 13 Magnetic-Proof up to 15,000 gauss, or the magnetic field equivalent of a high-field MRI. 14 Drop : withstand drops up to 5meters (16.4 feet) 15 Wearout: up to 10,000 swipes 16 Samsung is not liable for any damages and/or loss of data or expenses incurred from memory card data recovery. 17 Proofs are for the microSD card and do not include the adaptor.