The big brother of the 1SKB-iSF2U! This case features a virtually indestructible, waterproof injection moulded shell that is lighter, stronger, and more affordable than the previous 4U Studio Flyer and includes innovative moulded-in front and rear rack rails that provide even more security and durability for sensitive studio equipment during travel. 
As a larger Studio Flyer option, The 1SKB-iSF4U offers a 4U rack mount measuring 15" from the front rail to the rear rail which safely accommodates deeper equipment, such as the Universal Audio Apollo audio interface. It also provides a 21" x 15.5" adjustable work surface with ample room for laptops or monitors, and a specially moulded exterior pattern that stacks securely with all SKB Roto Racks for maximum transport convenience.
Other standard features include improved quiet-glide wheels, an easy-to-operate one-button pull handle, and TSA-accessible locking trigger latches. 
Features:
  - Waterproof & impact-resistant
 
  - Innovative moulded-in front/rear rack rails
 
  - 4U rack and laptop combo case
 
  - 8 rubber cleats to hold laptop into position during transportation
 
  - 15" front rail to rear rail depth
 
  - Laptop work surface: 21" x 15.5"
 
  - Stacks on Standard Roto Racks
 
  - Quiet-glide wheels & pull handle
 
  - Made in the USA
 
Specifications:
  - Exterior: Hard
 
  - Built In Wheels or Casters: Yes
 
  - Rack Units: 4
 
  - Front Rail To Back Lid: 16.75" / 42.55 cm
 
  - Rail To Rail: 15" / 38.10 cm
 
  - Rear Rail to Front Lid: 16.75" / 42.55 cm
 
  - Product Weight22.14 lb / 10.04 kg
 
  - Exterior Length: 24" / 60.96 cm
 
  - Exterior Width: 18.75" / 47.63 cm
 
  - Exterior Height: 12.75" / 32.38 cm
 
  - Carton Length: 24.5" / 62.23 cm
 
  - Carton Width: 19.5" / 49.53 cm
 
  - Carton Height: 13.5" / 34.29 cm