SL-3 Height: 5 1/4" H (3U Space) Features: -Feature a permanent plexiglass window for easy equipment viewing. -Secure and cost-effective. Country of Manufacture: -United States. Dimensions: Overall Product Weight: -1. 16 lbs. Height 1 3/4" H (1U Space) - Overall Height - Top to Bottom: -1. 75". Height 1 3/4" H (1U Space) - Overall Depth - Front to Back: -1". Height 3 1/2" H (2U Space) - Overall Height - Top to Bottom: -3. 5". Height 5 1/4" H (3U Space) - Overall Height - Top to Bottom: -5. 25". Height 5 1/4" H (3U Space) - Overall Depth - Front to Back: -6. 5".