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Steam Gift Card can only be activated on Steam accounts with the same currency.
Steam Gift Cards and Wallet Codes are an easy way to put money into your own Steam Wallet or give the perfect gift of games to your friend or family member.
Steam Gift Cards work just like a gift certificate, while Steam Wallet Codes work just like a game activation code both of which can be redeemed on Steam for the purchase of games, software, wallet credit, and any other item you can purchase on Steam.
I bought it and only after that I found out that you can only redeem it in certain countries, so I gave it away to someone and it worked. I'd wish there was a way to refund these, but it's still a good service, since the product works.