Attach two power adaptors per outlet. It can be used with any power strip or wall socket without blocking other outlets. Provides 16 Inches of space to accommodate over-size adaptors. Ideal for UPS, rack mount outlets and for travelling situations. Includes 2pc per pack. (REV3; Connector: AC NEMA 5-15P Male to 2 NEMA 5-15R Female; Length: 16 Inches; Color: Black; Power Wire: 18AWG/3C; Cable Rating: 10A/125v)