Based on this product's specifications, here are some alternatives and similar models
19" 4-analog fan panel Rockstable PL RSPL19-FT4 for rack cooling, 4 fans, analog control
Summary description:
Rack-mount 19" fan panel Rockstable PL RSPL19-FT4 with four analog-controlled fans for server and network cabinet cooling. Designed to fit standard 19-inch racks, it provides additional airflow to maintain equipment temperatures. Features analog fan speed control, front-mounted fans and mounting points for easy installation in data racks and telecom enclosures.