Lex 3RU Rack Mount Power Distribution, L21-30 In/Thru to (2) L5-30 and Duplexes
Details
Features:
Modules mount on standard 19" permanent and rolling racks
Modules are fully enclosed making them portable
Easy to install for range of needs
Branch-rated circuit protection
Indicator lights are included for clear presence of power
Laser etched numbers for easy circuit identification
Anodized black metal construction is lightweight and durable to withstand years of use
ETL Listed to UL Standards
*The ETL Mark is an accepted demonstration of product compliance in both the United States and Canada.
Specifications:
Size: 3RU
Environmental Rating: NEMA 1 Indoor
Input: Front: (1) NEMA L21-30, 30 Amp locking inlet
Output: Rear: (2) NEMA L5-30, 30 Amp locking receptacles Rear: (4) NEMA 5-20, 20 Amp duplex receptacles
Front: (1) NEMA 5-20, 20 Amp duplex receptacle
Feed Thru: Front: (1) NEMA L21-30, 30 Amp locking receptacle
Overcurrent Protection: Front: (2) 30 Amp Front: (4) 20 Amp thermal magnetic circuit breakers
Number of Circuits: 6
Dimensions: 19" W x 5.25" H x 5.5" D
Lex 3RU Rack Mount Power Distribution, L21-30 In/Thru to (2) L5-30 and Duplexes (Lex PRM3IN-5CC2DC) 
Nice web site easy to navigate. Colorful.
Service was great! Got a response to my question within 24 hours (next business day).
Customer support assisted me with a quest about rated amperage and this being a tax exempt purchase. Very helpful.