Online OTG Checker

The Online OTG Checker determines whether a given device, cable, and USB version combination will support USB On-The-Go operation. It accepts inputs describing the device model, USB version, OTG capability, the intended role (host or peripheral), the cable type, and a power budget. Conceptually, it applies a rule-based matrix that encodes standard OTG requirements, power envelopes, and cable capabilities to produce a verdict (PASS, FAIL, or CONDITIONAL) with supporting notes. The tool is useful for electronics technicians, hardware engineers, field service teams, and procurement specialists who need rapid, repeatable assessments without hardware prototyping. Unique value lies in the integrated power sanity checks, clear rationale, and exportable reports that summarize the decision factors for audits or handoffs. Core features include input validation, a deterministic compatibility score, and explicit power recommendations. Use cases include validating a new OTG cable before deployment, deciding whether a phone can host a USB storage device via OTG, and comparing multiple cables or adapters for a given device.