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Shop from 24,323,613 total and 7,332,325 unique sports cards. Baseball, Football, Hockey, and Basketball.

Ideal for Set Builders & Player Collectors

Build one order over time from multiple sellers, pay shipping once, and receive your cards in one package.

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Flat Rate Shipping

Buy now, ship later! Purchase over time from many sellers & ship once!

24 Million Cards Under One Roof

We house millions of sports cards from thousands of sellers and provide industry renowned customer service!

High resolution scans of the front & back of every card.

Easy & Fun Sports Card Flipping

Filter by team, player, set & more. Purchase, instantly relist, & flip for profit.

Buy Baseball Cards Online

We Do The Work To Sell Your Cards

Research & identify your collectibles

Evaluate condition & value

Scan the front & back of every card

Advertise to find buyers

Store & insure consigned collectibles

Resolve customer service needs

Securely package & ship to buyers

We Have Other Unique Services

Mailbox Services

Grading Services

eBay Integration

Historical Sales Data

Sell Baseball Cards Online

A Different Way to Sell Cards

We identify, scan, list, store, insure, package, and ship - just send us your sports cards, trading cards, and collectibles. COMC listings are automatically posted to eBay!

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The Safe and Easy Way to Buy and Sell Cards Online

Shop Recently Added

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Gleyber Torres

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DJ Peters

1954 Topps - [Base] #20

Warren Spahn [Poor to Fair]

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Patrick Mahomes II

2019 Panini Prizm - [Base] - Silver Prizm #308

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2011 Topps Finest - [Base] - X-Fractor #125

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Connor McDavid, Alexander Ovechkin

2019-20 Upper Deck - Rookie Breakouts #RB4

Nick Suzuki /100

2016-17 O-Pee-Chee Platinum - Retro - Orange Rainbow #R-70

Travis Konecny /49

2018-19 Upper Deck - [Base] #499

Young Guns - Brady Tkachuk

2014-15 Upper Deck Premier - [Base] #88

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2019-20 Panini Donruss - Crunch Time #10

Luka Doncic

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Zion Williamson

1988-89 Fleer Super Star Sticker - [Base] #7

Michael Jordan

1999-00 Upper Deck HoloGrFX - Maximum Jordan #MJ4

Michael Jordan

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COMC (Check Out My Collectibles) is a unique marketplace for buying and selling sports cards, gaming cards, comics, and more. We have a great selection of singles, memorabilia cards, autographed cards, and rookie cards. Our listings include front and back scans of every card. We're also a great place to sell cards. Do you want to know more about card values? Learn about our suggested prices.