Supports 5V 2A charging via a USB-C cable.
Note: Does not support data transfer.
Support charging via a USB-C cable. Does not support data transfer.
Frequently Asked Questions (FAQ):
- iPhone OTG Power Supply Limitations
(1) Identification Phase Limit (100mA): During the initial connection, the system limits the current to 100mA for the “handshake” identification process. For most standard USB flash drives, this limit is a major obstacle to usage.
(2) Operating Phase Limit (200mA): After successful identification, the maximum output current is approximately 200mA. This value is far below the power requirements for most external hard drives.
- iPad OTG Power Supply Limitations
(1) Lightning-port models: Similar to the iPhone, the strict 100mA identification limit remains in place, resulting in very limited power supply capabilities for accessories.
(2) USB-C-port models: Power supply capabilities are significantly enhanced, with most models providing approximately 7.5W (5V/1.5A), which is sufficient to power most USB flash drives and some low-power portable solid-state drives (PSSDs).
How to Choose OTG Devices
Before purchasing OTG accessories, we recommend prioritizing products that explicitly state support for “power delivery” or “external power” to avoid receiving the “This accessory requires too much power” warning.
Supports 5V 2A charging via a USB-C cable.
Note: Does not support data transfer.
Support charging via a USB-C cable. Does not support data transfer.
Frequently Asked Questions (FAQ):
- iPhone OTG Power Supply Limitations
(1) Identification Phase Limit (100mA): During the initial connection, the system limits the current to 100mA for the “handshake” identification process. For most standard USB flash drives, this limit is a major obstacle to usage.
(2) Operating Phase Limit (200mA): After successful identification, the maximum output current is approximately 200mA. This value is far below the power requirements for most external hard drives.
- iPad OTG Power Supply Limitations
(1) Lightning-port models: Similar to the iPhone, the strict 100mA identification limit remains in place, resulting in very limited power supply capabilities for accessories.
(2) USB-C-port models: Power supply capabilities are significantly enhanced, with most models providing approximately 7.5W (5V/1.5A), which is sufficient to power most USB flash drives and some low-power portable solid-state drives (PSSDs).
How to Choose OTG Devices
Before purchasing OTG accessories, we recommend prioritizing products that explicitly state support for “power delivery” or “external power” to avoid receiving the “This accessory requires too much power” warning.