Nice speed.

so high speed,very good

This card in particular was a great deal and specifically was meant for my new Canon 80D for recording video and having a fast buffer speed

This card is not only fast at sustained write speed but also snappy writing small blocks

Read speeds exceeded the 95 MB/sec claimed speed, going into the triple digits

just doing whats expecting on good speed

I definitely like the speed on it

However, I constantly got errors in both my Panasonic GH2 hacked and Panasonic GH4 stating the write speed was insufficient

Wonderful card, great speeds, perfect for 4k (I use it with the Lumix G7).

the writting speed is a lil bit slow but still works gret!

and it's basically the highest quality 64GB card I can get, I did get it on sale so the price was well set, however it's worked amazingly for me and gave me 0 issues while running very well and transferring files at amazing speed on both my PC and my 3DS.

Speed is as advertised, and works perfectly for my application.

Works great, great speed.

and you'll get enough writing speed for up to 100 Megabit/sec (e.g. GH4 4K)

So far I'm getting good speeds out of the card, read/write speeds are really all that I was looking for and this one seems to do fine, so it's working for my needs.

super fast load speed even when using raw files.

I ordered two of the 64 GB version for my Nikon D610, which has two SD card slots, in hopes of getting faster buffer clearing speeds and the security of having a backup made as I shoot

The write speed on these is great, and consistent

Awesome.. good speed... nothing more to write, just go for it...

Great product, fast write speed, excellent delivery time.

Love the speed!

These are good cards with fast writing speed, but not nearly fast enough for high quality video on a Lumix FZ1000.

Very fast write speeds

I've used it constantly for 22 straight years and it has yet failed once (touch wood).It doesn't have the fastest Write speed, so if you are not the type to spray and pray on your camera or your usage of this card doesn't require you to write super duper fast

Excellent speed

Nice capacity, good speed for videos, reliable so far

The speed is good and I both tested flawlessly.

Great Speed and capacity!

Very good speed for use with 4k video and camera products

It works just 'okay' with my Sony camera but after a while you'll grow tired of the slow transfer speeds from the card onto your computer

This card was used in a Sony A6000.In my personal experience, the advertised speeds are relatively accurate on both of these cards that I own which were bought half a year apart

These are good cards with fast writing speed, but not nearly fast enough for high quality video on a Lumix FZ1000

Has quite a good write speed.

Like the fast speed / high capacity, decreases delay in taking pictures with my Canon T5i, no issues, camera recognized card immediately and speed performance is better than my older/slower SD cards

Good quality and speed and does what it needs to do.

but yeah the speed on this thing is worth it.

Good card, reliable speed

Advertised speeds are incorrect

While still waiting for the Panasonic GH4 I tested this 128GB card on my Windows 8.1 64 bit system, measured stable 59 to 61MB/s write and 85 to 87MB/s read while copying a 5GB video file