O-ring for RATIO USB Cable

Engineered in Italy for demanding dives from the Bahamas to beyond, the O-ring for RATIO USB Cable delivers data you can trust.

• Upgrade‑able firmware keeps your computer future‑proof
• Rechargeable lithium battery with up to 90‑hour dive time
• Advanced Bühlmann ZHL‑16 algorithm with user‑adjustable GF%
• Factory‑sealed housing rated to 300 m / 984 ft

Shop with confidence—every Ratio computer is backed by a 2‑year warranty and world‑class support.