• The Safe & Easy Way to Buy & Sell Collectibles

    Buy from different sellers and get your cards in ONE shipment.

Sale - 85% OFF SRP
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Sale - 72% OFF SRP
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Sale - 45% OFF SRP
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Find baseball cards and other sports cards on sale in Promotions & Port Sales

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!

15 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

Amazon 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. All COMC listings can be automatically posted to Amazon!

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The Safe and Easy Way to Buy and Sell Cards Online

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2013 Bowman Inception - Prospect Autographs #PA-JB

Jose Berrios

$10.25
2014 Bowman Draft Picks & Prospects - Top Prospects Chrome #CTP-39

Aaron Judge

$12.00
2015 Topps Chrome - Rookie Autographs #AR-JS

Jorge Soler

$5.25
2016 Panini Donruss - New Breed Autographs #NB-MS

Matt Szczur

$7.25
1993 Topps - [Base] #98

Derek Jeter [BGS 8.5]

$29.65
2016 Donruss Optic - [Base] - Rookie Signatures Holo [Autographed] #109

Chris Jones /99

$5.25
1990 Fleer Update - [Base] #U-40

Emmitt Smith

$10.25
2005 Playoff Absolute Memorabilia - Marks of Fame - Gold #MF-15

Joe Namath /150

$5.25
2014 Panini Prizm - Autographed Rookie - Panini Logo Prizms #AR-JK

Jerick McKinnon /75

$6.20
2016 Panini Certified - New Generation Jerseys Mirror - Orange #11

Sterling Shepard /399

$7.74
2016-17 Upper Deck - UD Game Jersey #GJ-HS

Henrik Sedin

$15.25
2015-16 Upper Deck Ultimate Collection - Material Trios #MC3-BUF

Evander Kane, Jack Eichel, Sam Reinhart

$12.20
2015-16 Upper Deck - Shining Stars - Royal Blue #SS-4

Duncan Keith

$11.50
2008-09 Upper Deck Be a Player - Signatures #S-AL

Andreas Lilja

$4.99
2015-16 Upper Deck Tim Hortons Collector's Series - Above the Ice #AI-SC

Sidney Crosby

$13.95
2001-02 Upper Deck Honor Roll - All-NBA Authentic Jerseys #KM

Karl Malone

$10.20
2009-10 Playoff Contenders - Round Numbers #14

Dwyane Wade, Stephen Curry

$22.99
2009-10 Panini Season Update - Rookie Challenge #1

Stephen Curry

$17.50
2007-08 Topps Chrome - [Base] #131

Kevin Durant

$157.45
2015-16 Panini Prizm - [Base] - Green Prizm #400

MVP - Stephen Curry

$15.25

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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. We don't use stock images; 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.