Full Motion TV Wall Mount with Extra Long Extension

Reach Any Viewing Angle — Up to 38.77″ of Full Motion Extension

The Mount-It! MI-397 is a full-motion TV wall mount built for large screens that demand maximum flexibility. Its dual-arm articulating design extends up to 38.77 inches from the wall and retracts to just 3.14 inches for a low-profile look when not in use. Designed for 40″ to 80″ flat panel TVs weighing up to 121 lbs, it installs into dual wood or metal studs at 16″ or 24″ on center and supports corner installations — making it ideal for living rooms, home theaters, conference rooms, and commercial spaces where off-center or angled viewing is essential. A friction-hinge mechanism holds any position firmly without tools.

Key Specifications

• Compatible Screen Sizes: 40″, 42″, 43″, 48″, 50″, 55″, 58″, 60″, 65″, 70″, 75″, 77″, 80″
• Weight Capacity: 121 lbs
• VESA Compatibility: 200×200, 200×300, 200×400, 300×200, 300×300, 300×400, 400×200, 400×300, 400×400, 500×400, 600×200, 600×300, 600×400 mm
• Maximum Extension: 38.77 inches
• Minimum Depth (Retracted): 3.14 inches
• Tilt: 5° up / 10° down
• Swivel: 90° left / 90° right (180° total)
• Leveling: ±5°
• Wall Plate Dimensions: 25.19″ × 10.03″
• Stud Type: Dual stud, 16″ or 24″ on center
• Corner Installation: Supported
• Mechanism: Friction hinge
• Material: Metal (steel)
• Color: Black
• Model: MI-397

Compatible Installation Surfaces

• Wood studs (drywall over studs)
• Metal studs (drywall over metal studs)
• Solid wood wall (planks, beams, timber)
• Plywood backing wall
• Concrete (poured concrete)
• Concrete block (CMU / cinder block)
• Brick (solid brick)
• Brick veneer
• Tile over studs (tile on backer board over studs)
• Tile over masonry (tile on concrete or block)

Ideal Use Cases

• Living rooms and home theaters with large-screen TVs
• Corner TV installations where wall-centered mounting isn’t possible
• Bedrooms and home offices requiring wide swivel range
• Conference rooms, classrooms, and boardrooms
• Commercial spaces and retail environments
• Any space where extended reach or off-angle viewing is needed

TV & Monitor Brand Compatibility

Compatible with VESA-standard flat panel TVs and monitors from major brands including Samsung, LG, Sony, TCL, Vizio, Hisense, and others — provided the display falls within the supported size (40″–80″), weight (up to 121 lbs), and VESA pattern (200×200 to 600×400 mm) ranges.

What’s in the Box

• MI-397 full motion TV wall mount
• Mounting hardware
• HDMI cable
• Installation template
• Bubble level
• Cable ties
• User manual

Installation Details

• Installation Type: Dual stud wall mount, 16″ or 24″ on center
• Corner Installation: Supported
• Estimated Install Time: ~45 minutes
• Tools Required: Power drill, drill bits (wood bits for studs or masonry bits for concrete and brick), stud finder, screwdriver or socket wrench, measuring tape, level
• Mounting Template Included: Yes