The peripheral, which adds a second analogue stick and additional triggers to the Nintendo 3DS, will launch on January 27.
Resident Evil Revelations, which releases on the same day, will also see a limited edition bundle featuring both the game and the Circle Pad Pro.
The device will provide twin-stick shooter style controls for the survival horror title, as well as more advanced button combinations.
Set between Resident Evil 4 and Resident Evil 5, Revelations sees Jill Valentine and Chris Redfield investigate bioterrorism threats across Europe.
While it will feature modern over-the-shoulder mechanics, it is designed as a darker, more tense experience, similar to earlier Resident Evil games.
It will also feature a co-operative Raid mode with campaign missions that can be played either locally or online.
It was revealed yesterday that the next 3DS firmware update will be delayed until next month.
Watch the cinematic trailer for Resident Evil: Revelations below: