Capacitor Identification for speed board
Your capacitor is rated at 6v, 470uF, The package type A.

You can purchase a new one at this link, or google for another one that meets your specifications:
https://www.digikey.com/products/en?keywords=PCE3771TR-ND

Refer to the following diagram for SMD electrolytic capacitors:



Image from Digikey Blog