The 25-E (25R - Ears mount) fits in a full size 19" computer rack. It uses 5U of space and is mounted in the rack on rack ears. It is also fitted with feet for desktop or floor use, it will not stack with the Desktop variants. It's has 25R of internal space. It fits 2x140mm case fans on the back for cooling with included mounting kit. It has cable ports in the back as well as cable routing aides in the rear. It is compatible with all available Little Lab trays.

14-D (14R - Desktop) can be used on a desktop, floor, or shelf. It optionally fits a 140mm case fans on the back for cooling with included mounting kit. It mounts an integrated US based power strip. It has keystone networking ports in the back as well as cable routing aides in the rear. It stacks on top of desktop variants. It is compatible with all available Little Lab trays.

Fits the 2018-2023 Apple MacMini form factor (2011-2017 is untested). This tray is 3R in height and fits in all Little Lab racks.

Designed to fit the Minisforum MS-01. It comes in two pieces labeled with 'MS-01'. This tray is 4R in height and fits in all Little Lab racks.

Designed to fit the HP mini line of 1L PCs. It comes in two pieces labeled with 'HM', short for Hp Mini. This tray is 3R in height and fits in all Little Lab racks.

Designed to fit the Dell Micro line of 1L PCs. It comes in two pieces labeled with 'DM', short for Dell Micro. This tray is 3R in height and fits in all Little Lab racks.

Designed to fit the Lenovo Tiny line of 1L PCs. It comes in two pieces labeled with 'LT', short for Lenovo Tiny. This tray is 3R in height and fits in all Little Lab racks.

Built in standoffs and screw mounts for 4 Raspberry Pis. One Pi stack with no hats fits in 2R. Two PIs stacked, with no hats fits in 3R. PI stacks can go up to accommodate hats.

Designed to fit the Ubiquiti Cloud Gateway Ultra and Max. This is a single piece press-fit style tray. This tray is 2R in height and fits in all Little Lab racks.

Designed to fit the BeeLink SER7. It comes in two pieces labeled with 'BL-SER7'. This tray is 4R in height and fits in all Little Lab racks.

Mount power supplies, cord spools, or other equipment with Velcro or zip ties on this shelf that allows for flexible placement.

Ubiquiti Flex Mini

Designed to fit the Netgear GS308 1GB Ethernet Switch. The switch is placed into the tray by bending the tray slightly and fitting it. It is removed by reversing the process.

Tray for the Trendnet TEG-S380 2.5Gb switch. This switch has ports on the same side as the power supply. Which makes this a clean rear facing switch.

Patch Panel fits 10 keystones and uses 2R of vertical space. To save overall volume it can be placed directly above a PSU tray if you leave sufficient keystones open for airflow. This hides the PSUs and provides a clean look while allowing for required PSU ventilation.

The storage drawer fits snugly in 2R of height. Useful for storing extra parts, RAM, SSDs, USB devices, and cables. This fits all Little Lab racks.

Faceplate provides a clean look to the rack and controls airflow by forcing it through other areas of the rack.

Spare 140x25mm fan shroud, fits all Little Lab racks.