Check the box and/or manual for your case.. The dimensions will be mentioned in that.. You can measure you cases video card slot usable length by using a scale.. I found out info on Rosewill R102-P-Bk.. The dimension specs were written as 15"(L) x 7.5"(W) x 13.8"(H) .. If your case dimensions are almost same, then the HD 5830 looks to be a tight fit..