The 1901-1-101-04 from Kendall Howard is a 4U Flat Spacer Blank. It is designed to fill in empty rack spaces in a rack and also helps provide support for the mounting rails in addition to controlling airflow.
Features:
- Universal/Tool-less Mounting - mounting holes compatible with any standard rack hardware
- Rounded corners
- Dimensions: 20"L x 6"W x 6"H
- 3.5 lbs