BANA2 Number of Punchouts: 4 Features: -Strong interlocking system eliminates panel deflection while inserting or removing connectors.-Modular assemblies bolt together using supplied hardware.-Hardware is flush to create professional appearance with no gaps.-Single tier of five modules bolts across a 2U space frame kit.-Two tiers of five modules bolt across a U space frame kit.-Modules are prepunched to accept XLR, Neutrik, Elco, Canare, and a host of other connector configurations. Options: -Optional blank or vented panels are available to fill unused spots.-Available in a brushed black anodized finish. Dimensions: -Fit the Universal Dual Banana jack receptacle for speakers (requiring 1/2" hole).-Dimensions: 3.39" W X 3.49" D.