I have 7 cards, but 8 regular sized cards should fit. One of mine is a thick metal card so it took up the space of 1.5 cards but I love this thing!
Crabby Wallet Minimalist Pocket Polyester Men's Accessories in Wallets, Card Cases & Money Organizers
59 Review
BRASS TACKS Leathercraft Handmade Blocking Men's Accessories and Wallets, Card Cases & Money Organizers
89 Review
Royce Leather Mens Business Green Men's Accessories in Wallets, Card Cases & Money Organizers
62 Review
Maxpedition BRK π³ MX218F Gear Micro Wallet
68 Review