Shop from 44,752,832 total and 12,681,144 unique sports cards. Baseball, Football, Hockey, and Basketball.

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

44 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.

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

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eBay Integration

Historical Sales Data

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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2023 Bowman - Chrome Prospects #BCP-65

Elly De LA Cruz [PSA 10 GEM MT]

$38.19

2022 Topps Project 70 - Online Exclusive [Base] #812

1984 Topps Baseball - Rickey Henderson by Alex Pardee /5867 [Uncirculated]

$68.10

1999 SP Authentic - Chirography #CB

Carlos Beltran

$34.75

2017 Topps High Tek - [Base] - Pattern 3 #HT-AJ

Aaron Judge

$57.35

2023 Bowman Sterling - Prospect Autographs #PA-JD

Josue De Paula

$57.70

2024 Panini Donruss Optic - [Base] - Green Velocity Prizm #229

Rated Rookie - Drake Maye

$52.00

2024 Panini Donruss - [Base] - Optic Preview Pink Prizm #389

Rated Rookie - Jayden Daniels

$18.94

2011 Bowman Sterling - Relics - Refractor #BSR-BU

Brian Urlacher /299

$40.79

2020 Panini Mosaic - [Base] #207.1

Rookies - CeeDee Lamb [PSA 10 GEM MT]

$45.10

1999 Upper Deck Retro - Inkredible #SL

Steve Largent

$46.54

2024-25 Upper Deck Series 2 - [Base] - Silver Foil #484

Young Guns - Jett Luchanko

$32.74

2023-24 Upper Deck Series 2 - [Base] #468

Young Guns - Leo Carlsson

$41.60

2025 Upper Deck GR8 Moments - [Base] - Red #GR-8

(Apr. 6, 2025) - Alex Ovechkin Breaks NHL Goals Record

$23.54

2021-22 Upper Deck Series 1 - Day with the Cup Flashbacks #DCF-10

Johnny Bucyk

$20.72

2020-21 Upper Deck Extended Series - 2005-06 Upper Deck Tribute - Electric Ice Achievements #T-76

Young Guns - Alexis Lafreniere

$15.49

1992-93 Upper Deck - [Base] #2

Alonzo Mourning [PSA 9 MINT]

$22.10

2024 Panini Prizm WNBA - [Base] - Pulsar Prizm #10

Star Rookies - Stephen Curry [PSA 9 MINT]

$258.60

1999-00 Upper Deck - Cool Air #MJ6

Jump to Popular Players!

Michael Jordan HOF	Shohei Ohtani	Aaron Judge	Alexis Lafreniere	Zion Williamson	Stephen Curry
Connor Bedard	LeBron James	Spider-Man	Tom Brady	Derek Jeter	Patrick Mahomes II
Connor McDavid	Luka Doncic	Ken Griffey Jr.	Wolverine	Ja Morant	Paul Goldschmidt
Kobe Bryant	Auston Matthews	Mike Trout	Ronald Acuna Jr.	Shaquille O'Neal	Wayne Gretzky

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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.