Based on this product's specifications, here are some alternatives and similar models
Backplate Alphacool 13043 Acrylic Copper Nickel Stainless Steel Transparent
Summary description:
The Alphacool 13043 backplate is designed for computer cooling systems. Made from acrylic, copper, and nickel, it features a stainless steel and transparent finish. Dimensions are 125.7 mm in width, 289.9 mm in depth, and 13.3 mm in height. It operates at RGB voltage of 5 V and comes in a box with one piece per pack.