How to deposit USD to altcoin exchange

C-cex.com exchange has the possibility to trade USD with all altcoins.

You can easy deposit USD into your C-cex.com account using bank transfer, Egopay, OKpay, Perfect Money and other methods.

A very easy way is to use Xmlgold: they are selling C-CEX USD voucher codes at reasonable prices with lot's of payment options, that you can use to refill your USD balance instantly.

Simple instruction: go to Xmlgold (no registration needed), select your "Currency to sell" and in "Currency to buy" select "C-CEX USD". All operations automatic and almost instant.
To redeem code, login into your C-cex.com account, go to "My assets" > "Balance" > "C-CEX codes" > put Your USD code to redeem input box.