Product Details and Specifications : Heavy Duty 16-Gauge Lock-Box is Perfect for Protecting your Valuable DVR, VCR, or Multiplexer; Precut Holes for Wiring, Upper Lid Removal for Easy Installation, and Industrial Grade Lock; Vandal Resistant Lock Box has Rugged Steel Gauge Construction to prevent Unauthorized Access to Valuable Data and Unit Protection; Properly Maintains Recording Device/Multiplexer with Built-In Cooling Fan and Multiple Vents to Release System Dissipation; Sturdy Industrial Lock Includes 2 Distinct Keys For Additional Product Specifications Please Contact Customer Service at 877-327-5000