SDHC cards get a class rating (6, 8, 10) which denotes how fast the card can transfer data, higher class cards will transfer data faster and for that reason cost more money. However the 3 cards you've linked to are all class 10.

The other difference between them is quality, cheaper cards are more likely to fail sooner in my personal experience. I've had a search around and I can't find any studies done on this, maybe someone else can. I've personally had issue's with a Transcend branded card very early in its life and since then I've only bought Kingston cards (and have yet to have an issue). Others will likely recommend other brands.

It's my understanding that flash memory is actually produced in very few places by very few companies and that the majority of brands that you find on cards haven't actually produced the flash memory itself, they simply buy it from the places that do and put their own branding on it. I suspect that some of the cheaper brands will buy the lower quality samples from factories!

I won't tell you to buy the most expensive card but neither will I tell you to by the cheapest either, I'm afraid you have to decide how much you feel is a reasonable price and shop around.

SDHC cards get a class rating (6, 8, 10) which denotes how fast the card can transfer data, higher class cards will transfer data faster and for that reason cost more money. However the 3 cards you've linked to are all class 10.

The other difference between them is quality, cheaper cards are more likely to fail sooner in my experience. I've had a search around and I can't find any studies done on this, maybe someone else can. I've personally had issue's with a Transcend branded card very early in its life and since then I've only bought Kingston cards (and have yet to have an issue). Others will likely recommend other brands.

It's my understanding that flash memory is actually produced in very few places by very few companies and that the majority of brands that you find on cards haven't actually produced the flash memory itself, they simply buy it from the places that do and put their own branding on it. I suspect that some of the cheaper brands will buy the lower quality samples from factories!

I won't tell you to buy the most expensive card but neither will I tell you to by the cheapest either, I'm afraid you have to decide how much you feel is a reasonable price and shop around.

SDHC cards get a class rating (6, 8, 10) which denotes how fast the card can transfer data, higher class cards will transfer data faster and for that reason cost more money. However the 3 cards you've linked to are all class 10.

The other difference between them is quality, cheaper cards are more likely to fail sooner in my personal experience. I've personally had issue's with a Transcend branded card very early in its life and since then I've only bought Kingston cards (and have yet to have an issue). Others will likely recommend other brands.

It's my understanding that flash memory is actually produced in very few places by very few companies and that the majority of brands that you find on cards haven't actually produced the flash memory itself, they simply buy it from the places that do and put their own branding on it. I suspect that some of the cheaper brands will buy the lower quality samples from factories!

I won't tell you to buy the most expensive card but neither will I tell you to by the cheapest either, I'm afraid you have to decide how much you feel is a reasonable price and shop around.

SDHC cards get a class rating (6, 8, 10) which denotes how fast the card can transfer data, higher class cards will transfer data faster and for that reason cost more money. However the 3 cards you've linked to are all class 10.

The other difference between them is quality, cheaper cards are more likely to fail sooner in my personal experience. I've had a search around and I can't find any studies done on this, maybe someone else can. I've personally had issue's with a Transcend branded card very early in its life and since then I've only bought Kingston cards (and have yet to have an issue). Others will likely recommend other brands.

It's my understanding that flash memory is actually produced in very few places by very few companies and that the majority of brands that you find on cards haven't actually produced the flash memory itself, they simply buy it from the places that do and put their own branding on it. I suspect that some of the cheaper brands will buy the lower quality samples from factories!

I won't tell you to buy the most expensive card but neither will I tell you to by the cheapest either, I'm afraid you have to decide how much you feel is a reasonable price and shop around.