Compatibility-- The DC 5V 4A car charger compatible with Rand McNally GPS slice mount. Work with OverDryve 7, OverDryve 7 RV, OverDryve 7 Pro, OverDryve 8 Pro, TND 750, TND 740, OverDryve Pro II Truck GPS & Connected, TND Tablet 85 Truck GPS. Did not compatible with OverDryve 7C and other brands GPS magnetic slice mount, please double check to avoid being incompatible with your devices | Specification--Input: AC 100V-240Volt 50-60HZ Output: DC 5V Max 4A, power supply for Rand Mcnally GPS magnetic slice mount AC adapter. Cord Length: 5 FT longer dc power cord enough to use the charger for Rand mcnally GPS mount charge any situation | Reliability--AC-DC adapter for Rand mcnally GPS mount car charger has been checked multiple times and CE/FCC certified charger compatibles with Rand Mcnally RV Truck GPS magnetic slice mount power cord. OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection | Durability--AC power adapter for Rand Mcnally GPS Mount OverDryve 7 is made of robust quality material and has been well checked by the manufacturers. It meets OEM standard for long lasting use. This charger for Rand Mcnally GPS Mount OverDryve 7 RV is small enough for travel, it's easy to carry | What You Get--1 Piece 5V dc power supply for Rand Mcnally GPS Mount. If you have any questions before you order, please contact us, we will reply as soon as possible within 24 hours