The SKB-AV8 is an 8U retractable shelf designed after our AV14 (a SKB19-R1406 Mighty GigRig accessory). Not only is the AV8 a great accessory/add-on for the SKB-R104, but it can also be mounted to any slant top mixer case with at least 8U of rack space, including our SKB-82DJ, SKB-84DJ and SKB-106DJ products. The SKB-AV8 is the perfect solution for a laptop or projector.