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DropTech for Acer Chromebook 311/C721 (Clamshell)


Gumdrop’s DropTech Acer Chromebook 311/C721 Clamshell Case is a shock-resistant combination of TPU rubber and rigid polycarbonate casing for Acer’s newest Chromebook. 

The case features asset tag and embellishment friendly top and bottom and lightweight, 2-piece construction that is simple to install onto the device.

Dual material construction (PC & TPU) allows for easy asset management and prevents sliding on desk and countertops. 

The case is charge cart friendly and Prop65 compliant.

Device Compatibility

Education Pricing Available

Gumdrop is proud to partner with all preferred
resellers. View a list of approved resellers here.

  • Air-Cell Drop Corners
  • 2-piece, co-molded TPU and PC case construction (top and bottom)
  • Easy installation in 20 seconds
  • Works in charging carts
  • Asset tag friendly (top and bottom)
  • Drop tested to protect against falls up to 4 feet (TechShell Rugged 4-26 Certified)


  • Width 8.58 in.
  • Height 12.5 in.
  • Depth 1.1 in.
  • Weight 0.96 lbs.
Product Specsheet

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Installation instruction is currently unavailable.

For assisstance, email us at or call 206-971-1917

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