Fostex T50RP Mk3 Professional headphones at Crutchfield
Fostex T-series MkIII
Balanced Modded Fostex T50RP MK3 Headphone Bundle with Pellucid-PLUS Cable
Fostex T50RP Mk. III – Zeppelin & Co
Fostex T50RP Mk3 Professional Semi-Open Headphones – Addicted To Audio NZ
Amazon.com: Fostex T50RPMK3 Professional Studio Headphones : Electronics
Fostex T50RP Mk. III – Zeppelin & Co
Fostex T50RP Mk. III - Version 1 - Mayflower Electronics
Fostex T50RP MK3: Classic headphones that still deliver
Balanced Modded Fostex T50RP MK3 Headphone Bundle with Pellucid-PLUS Cable
Modded Fostex T50RP Mk3 with MMCX and selector switch that retains original 3.5mm jack (description in comments) (x-post from r/headphonemods) : r/headphones