GDS® Hardwire Charger with mUSB Plug and Serial Adapter
Always Protected. Always Connected.®
Part#:RAM-GDS-CHARGE-RS232U UPC:793442006975
Leveraging the USB 2.0 OTG mode, the RAM-GDS-CHARGE-RS232U adapter combines two functions that are critical to enabling ELD and telematics solutions with commercially available tablet form factors. The ability to charge a host device ¬– that supports the OTG embedded (FTDI and Prolific) drivers while communicating to RS232 devices – also allows a tablet or phone to become enabled for applications that require charging and peripherals at the same time. This adapter allows the tablet to be in both host mode and accept a charge of up to 1.67A (at ~5V), eliminating the need for a separate charger. The internal charger supports USB 2.0 BC1.2 mode as a DCP mode charger to the host device. The adapter supports attached RS232 (serial) devices to communicate information such as engine data, streaming location data, driver ID information, and much more. This charger has a Molex connector on it and includes a Molex to serial cable. Always Protected. Always Connected.®

packaging type

Poly Bag

input voltage


output voltage


output current

2.5A max

input connector

Male mUSB 2.0
.5 Meter Molex Micro-Fit 3.0 Female to RS232 DB9 pin serial cable - VCC, GND, RTS, CTS, TXD, RXD Signals

input cable length

1.2 Meters

output cable length

1 Meter

transfer speed

Up to 115200bps

operating temperature

-30°C to +70°C

storage temperature

-40°C to +85°C


Molex MIcro-Fit 3.0 3x2 6 Position Male Connector (on housing)


Over Voltage Protection (OVP), Integrated Short Circuit Proetection (SCP)


FCC, Industry Canada, CE, RCM, WEEE, E-Mark, and RoHS Compliant
USB 2.0 BC 1.2 DCP Support
FTDI WHQL or Android Driver Compatible
FTDI USB to RS232 FT232RL Converter
ZT213LEEA Serial Driver


3 year warranty


0.46 lb

Additional Information

Tablet Compatibility¹:

Samsung Galaxy Tab A (8.0”, 9.7”, 10.1″)
Samsung Galaxy Tab E (8.0”)²
Samsung Galaxy Tab E (9.6”)
Samsung Galaxy Tab S2 (8.0″, 9.7″)
Samsung Galaxy Tab 4 (8.0″, 10.1″)
Samsung Galaxy Tab S (8.4″, 10.5″)

¹This list is not complete, yet contains tablets that have been tested. There might be changes or previous / subsequent modifications made by the OEM to the listed product that might reduce or eliminate compatibility without notice.

²Supports up to the SM-T377W