Here’s a more detailed description of the brake booster for a Honda Accord TAO / TA0 2.0 (2008-2012 generation) — what it is, how it works, and the typical OEM specifications. If you want a diagram or cross-reference numbers, I can also dig that up.

What is a brake booster (power brake booster)?

• The brake booster is a vacuum-assisted device in the braking system that amplifies the force your foot applies to the brake pedal.
• It sits between the brake pedal (via a push rod) and the master cylinder.
• When you press the brake pedal, the booster helps reduce the effort needed by using vacuum from the engine (or a vacuum pump) to assist pushing the master cylinder piston.
• This makes braking easier and helps achieve stronger braking force with less pedal pressure.

Key characteristics / OEM specifications for the TAO / TA0 2.0

From available parts listings and OEM data, here are the details I found: