Garmin GMR Voltage Converter Unit Free Ground Shipping! Garmin GMR Voltage Converter Unit The Garmin GMR Voltage Converter is compatible with Garmin xHD3 Open Array Radars. The GMR Voltage Converter enables GMR xHD3 4kW radars to achieve a 100-knot wind rating. SKUGAX13336 MAN#010-13336-00 ID#: 7623 (Rating 89) Our Price: $299.95 Availability: Usually Ships in 3-5 Days Shipping:Free Ground Shipping! Condition:Brand New Add to cart We’re sorry for the inconvenience, but please know we are working hard to replenish stock and fill backorders. Global shipping constraints and other material shortages have slowed the supply of products in many industries, including GPS and Marine electronics. We update the Estimated Shipping Date on our website in real time, so feel free to check back frequently. Thank You for your patience and for shopping with The GPS Store, Inc.