Product Comparison: Lexar Premium II 300x vs Lexar Professional 633x


General Specifications
Brand
Lexar
Lexar
Model
Premium II 300x
Professional 633x
Origin
Korea
Korea
About the Product
Lexar Platinum II 300x SDHC/SDXC UHS-I cards deliver high-speed performance, from start to finish. Designed for advanced photo enthusiasts or anyone who enjoys taking photos, these high-speed, high-capacity cards give you the power to fully leverage the photo and video.
Lexar Professional 633x SDHC/SDXC UHS-I cards let you quickly capture and transfer high-quality photos and 1080p full-HD, 3D, and 4K video, with a read transfer speed up to 633x (95MB/s). The cards leverage UHS-I technology for high-speed, Class 10 performance.
Key Specs
Type
SDXC
SDXC
Capacity
128 GB
128 GB
Bus Type
UHS-I
UHS-I
Read Speed
45 MB/s
95 MB/s
Write Speed
20 MB/s
45 MB/s
What customers say about "Key Specs"
Lexar Premium II 300x 128GB SDXC U1 Memory Card
  • Lots of speed. Great price. Complete winner!
  • The card worked well, and when transferring data from the old card to this one, the speeds were really good.
  • Good card meets speed expectations and as usual Lexar is reliable and rock solid.
  • Works well enough. Not blisteringly fast but meets its advertised speed.
  • Works really well and has a really fast read/write speed.
Lexar Professional 633x 128 GB Class 10 UHS-I Flash Memory Card
  • This card advertises all over its read speed (95MB/s), which is quite good.
  • Good read and write speed, I use it with my Nikon D810 and never suffered from any lag.
  • Excellent product with great transfer speeds.
  • The write speed, is very, very slow (20MB/s)!
  • The read and write speed are slower than I thought with this price.
Size & Weight
Height
1.26 in.
1.25 in.
Width
0.94 in.
0.95 in.
Depth
0.08 in.
0.08 in.
Weight
0.16 oz.
0.3 oz.
Features
Speed Class
10
10
UHS Speed Class
U1
U3
Built-in Write-Protect Switch
Yes
Yes
Extras
High-capacity options, Designed for fast-action photography, High-speed file transfer, Capture high quality images
High-speed file transfer, Temperature Extremes, Capture high quality images, Fast Video Capture
Video Speed Class
V30
What customers say about "Features"
Lexar Premium II 300x 128GB SDXC U1 Memory Card
  • Works great! I bought this for my Pentax K-S2 DSLR. Formatted fine.
  • Pictures / quality looked awesome with really fast speed. Working great.
  • Never had a problem. Class 10 card so you'll receive top speeds.
  • Read/Write speeds are good. Gives up to 5-6 fps on my camera when shooting RAW.
  • This is plenty fast enough to shoot 4K video, and offers great value.
Lexar Professional 633x 128 GB Class 10 UHS-I Flash Memory Card
  • Very good transfer speeds and high quality pictures.
  • This is a great SD card and it's extremely fast.
  • Lexar works great and it solved the problem with a too small SSD disc. The transfer of files is fast and I'm happy.
  • Video features available to take high-quality, stunning images Full-HD 1080p, 3D and 4K video.
  • Stable, reliable and fast enough. Has great features.
Warranty / Certifications
Manufacturer warranty
1 year(s)
1 year(s)
Certifications
CE, FCC
CE, FCC
Other Information
Manufacturer


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