Buy the M-Audio SP2 Sustain Pedal

Buy Electric & Acoustic Guitars M-Audio SP2 Sustain Pedal at GoodwillFinds.

Common Pedals for Digital Keyboards

Not exactly about synths, but Walmart has M-Audio SP-2 Sustain Pedals on clearance : r/synthesizers

BOSS EV-5 Expression Guitar Pedal and M-Audio SP-2 - Universal Sustain Pedal with Piano Style Action For MIDI Keyboards, Digital Pianos & More : Musical Instruments

M-Audio M-Gear Sustain Pedal - Evolution Music

M-Audio SP-2 Universal Sustain Pedal Unboxing & Review

M-Audio SP-2 Sustain Pedal (Keyboard Pedal) - buy at digitec

M-Audio SP2 Sustain Pedal

Not exactly about synths, but Walmart has M-Audio SP-2 Sustain Pedals on clearance : r/synthesizers

6' Cable with 1/4 Plug. Polarity Switch. Non-Slip Bottom.

M-Audio SP-2 Universal Sustain Pedal For Electronic Keyboards W/ 6' Cable(BLACK)