621784023209

• 6 — Number system
• 21784 — Manufacturer code
• 02320 — Product code
• 9 — Check digit (confirms the number is well-formed)

UPC-A ✓ Valid check digit

5.25inch Asus 40x Max retail CD-rom

Search for 5.25inch Asus 40x Max retail CD-rom on Amazon (or for the code 621784023209)