Whynter 3.1 Cu. Ft. Convertible Fridge/Freezer with Lock (CUF-301SS) review

The Whynter CUF-301SS is an upright 3.1 cu ft unit that you set as either a refrigerator or a freezer. Whynter lists a refrigerator mode of 32°F to 50°F and a freezer mode of -14°F to -11°F, so it can hold drinks in summer and frozen meat in winter, though not both at once. A cylinder lock with two keys secures the contents, which is useful in offices, shared houses and garages. Inside are 2 wire shelves and 1 slide-out basket. It is Energy Star rated and UL certified, with 240 kWh of estimated yearly electricity use, noise under 42 dB and a stainless steel reversible door with a recessed handle. It is larger than most units here at 20.5 by 21.2 inches and 34.5 inches tall, and weighs 50.5 lbs. Defrost is manual and the warranty is one year limited. Whynter's store lists it at $399.99 with free shipping.

Who it is for

offices and shared spaces that need a lock

Price

$399.99 on Whynter's store with free shipping.

$399.99 QUANTITY
Quoted from the vendor pricing page on November 14, 2026.

Key features

• Converts between refrigerator mode (32F to 50F) and freezer mode (-14F to -11F)
• Cylinder lock with two keys
• 3.1 cu ft with 2 wire shelves and 1 slide-out basket
• Energy Star rated, 240 kWh estimated yearly use
• Stainless steel reversible door, noise under 42 dB

Strengths and weaknesses

• Strength: Can serve as a full upright freezer when needed
• Strength: Only full-size mini fridge here with a key lock
• Strength: UL certified, with a black version (CUF-301BK)
• Weakness: Runs as a fridge or a freezer, not both at once
• Weakness: Most expensive fridge on this list at $399.99
• Weakness: Manual defrost and a 1-year limited warranty

Key facts

• Capacity: 3.1 cu ft
• Modes: Fridge 32F to 50F or freezer -14F to -11F
• Dimensions: 20.5 L x 21.2 D x 34.5 H in
• Lock: Cylinder lock, 2 keys
• Warranty: 1 year limited

Where it ranks

Whynter 3.1 Cu. Ft. Convertible Fridge/Freezer with Lock (CUF-301SS) is No. 6 in our Best Mini Fridges verdict.