SHENZHEN I/O DE gift card
Only works on accounts and stores in Germany.
How to redeem
Steps and terms from the card's issuer.
Login to your steam account, click on your account name → account details → add funds to your steam wallet → redeem a steam wallet code
- Log in to your Steam account.
- Click on your account name in the top-right corner and select Account Details.
- Click on Add Funds to Your Steam Wallet.
- Select Redeem a Steam Wallet Code.