Sliding Rail Kit for INFINITUM Rackmount Systems. Supported rack depth: 28" to 39" Our Products: INFINITUM Chassis SKU: SLIDING-RAILS-26-2 Sliding Rails for INFINITUM (Pro) Rackmount Systems (only available for purchase as add-on to INFINITUM II case or system). Supported rack depth: 28" to 39"Price: $68.00 Add to Cart Sliding Rail Kit for INFINITUM Rackmount Systems. Supported rack depth: 28" to 39" Previous Item Next Item Product Details Sliding Rails for INFINITUM (Pro) Rackmount Systems (only available for purchase as add-on to INFINITUM II case or system). Supported rack depth: 28" to 39"