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Blue rectangular SDXC memory card with Gigastone branding and a small plastic case

Gigastone Corporation

Gigastone 64GB SDXC V30 UHS-I 100MB/s memory card

SKU CH-G5HB-DDP2E

64 GB SDXC card rated V30 and U3 for 4K video, with up to 100 MB/s read and 40 MB/s write speeds, plus waterproof, shock-proof and x-ray-proof protection

  • Card typeFull Size SD
  • TypeSecure Digital Extended Capacity (SDXC)
  • Capacity64GB
  • Speed Class RatingA1 / U3 / UHS-I / V30
  • Read SpeedUp to 100MB/s
  • Write SpeedUp to 40MB/s

Capacity 64GB

Series 4K Camera Pro

Option 1-Pack

  • 64GB capacity stores thousands of photos and Full HD clips
  • V30 and U3 ratings guarantee 30MB/s minimum write for 4K Ultra HD video
  • Up to 100MB/s read speed moves large files to a PC quickly
  • Waterproof, temperature-proof, X-ray-proof, shock-proof and magnetic-proof for rugged use
  • Includes a mini case to keep the card protected on the go

What this card is and who it is for

This Gigastone 64GB SDXC card is rated UHS-I U3 V30 A1 with read speeds up to 100MB/s and write speeds up to 40MB/s. It is built for digital point-and-shoot cameras, HD camcorders, DSLRs and PCs that accept SDXC media. The card is waterproof, temperature-proof, x-ray-proof, shock-proof and magnetic-proof, and it ships with a mini case.

Who it suits and who should look elsewhere

Photographers and videographers capturing 4K Ultra HD footage or burst stills on SDXC-compatible bodies will find the sustained write performance adequate. Buyers who need higher sustained write speeds for high-bitrate cinema codecs, larger capacities than 64GB, or UHS-II bus performance should consider other options.

The specification that decides fit

The V30 speed class guarantees a minimum sequential write of 30MB/s, which is the key figure for verifying that the card can sustain 4K video recording on your specific camera.

Highlights

  • 64GB capacity stores thousands of photos and Full HD clips
  • V30 and U3 ratings guarantee 30MB/s minimum write for 4K Ultra HD video
  • Up to 100MB/s read speed moves large files to a PC quickly
  • Waterproof, temperature-proof, X-ray-proof, shock-proof and magnetic-proof for rugged use
  • Includes a mini case to keep the card protected on the go

Specifications

BrandGigastone
Card typeFull Size SD
Series4K Camera Pro
Part NumberGS-SD-64-2-1PK-B
TypeSecure Digital Extended Capacity (SDXC)
Capacity64GB
Speed Class RatingA1 / U3 / UHS-I / V30
Read SpeedUp to 100MB/s
Write SpeedUp to 40MB/s
FeaturesUp to 100 MB/s data transfer speed
4K Ultra HD UHD Video Compatible
Ideal for Digital point-and-shoot cameras, HD camcorders, DSLR and PC
Waterproof, temperature-proof, x-ray-proof, and shock-proof, magnetic proof. With 1 mini case
5 year limited Warranty from best manufacturers and suppliers of memory cards

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Questions about this item

How do I install the 64GB SDXC card in my camera, and what step do people often miss?

Insert the card label-side up until it clicks; the step many miss is formatting it in the camera menu before first use so the file system matches the device.

What maintenance or replacement will the V30 UHS-I card need later?

No scheduled maintenance is required; replace the card if write errors appear or after heavy 4K video use wears the NAND beyond its endurance.

What limit shows up first during sustained 4K recording on this 100MB/s read card?

The 40MB/s maximum write speed is the first bottleneck during continuous 4K capture, not the 100MB/s read rate.

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