Silicon Power releases impressive Superior Pro SDXC UHS-II cards for creators

With read speeds of up to 280 MB/s and write speeds of up to 170 MB/s, Silicon Power's new Superior Pro SDXC UHS-II cards are perfect for creators.

1 minute & 38 seconds read time

The new Superior Pro SDXC UHS-II cards from Silicon Power have been designed for professional content creators, with impressive read speeds of up to 280 MB/s and write speeds of up to 170 MB/s.

Silicon Power's new Superior Pro SDXC UHS-II cards

Silicon Power's new Superior Pro SDXC UHS-II cards

With that, you can probably conclude that they're more suited for DSLR cameras, drones, and high-end video recorders than a Nintendo Switch for storing all your game downloads. However, you wouldn't be at fault for putting one of these inside a Steam Deck. And with that, the new Superior Pro SDXC UHS-II cards are also waterproof, shockproof, and temperature proof - with operating temps of 0°C to 70°C.

For content creators in the video and cinema space, the UHS-II interface supports the V60 Video Speed Class standard, which guarantees minimum write speeds of 60 MB/s. This ensures that any 360-degree photography, 4K video capture, and continuous, high-quality images are all captured without lag.

Or, more importantly, without things like dropped frames or compression artifacts. Compared to UHS-I, Silicon Power notes that UHS-II writes raw files in nearly a third of the time of its predecessor - a dramatic improvement.

The impressive read speeds also mean that you're looking at smooth, uninterrupted playback and faster post-production file transfers from devices to PC platforms. Storage capacity for the Superior Pro SDXC UHS-II cards starts at 128GB, with 256GB and 512GB variants also available - with all cards coming with a five-year warranty.

Specifications can be found below.

  • Capacity: 128GB, 256GB, 512GB
  • Dimensions: 24.0mm x 32.0mm x 2.1mm
  • Weight: 2g
  • Performance Read(max.): 280MB/s
  • Performance Write(max.): 170MB/s
  • Video Speed: Class 10, UHS-II U3, V60
  • Durability: 10,000 insertions (minimum)
  • Operating Temperature: 0°C - 70°C
  • Storage Temperature: -40°C - 85°C
  • Humidity: 8% - 95%
  • Operation Voltage: 2.7V - 3.6V
  • Warranty: 5 years


Kosta might be a relatively new member of TweakTown, but he’s a veteran gaming journalist that cut his teeth on well-respected Aussie publications like PC PowerPlay and HYPER back when articles were printed on paper. A lifelong gamer since the 8-bit Nintendo era, it was the CD-ROM-powered 90s that cemented his love for all things games and technology. From point-and-click adventure games to RTS games with full-motion video cut-scenes and FPS titles referred to as Doom clones. Genres he still loves to this day. Kosta is also a musician, releasing dreamy electronic jams under the name Kbit.

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