High quality over current protection, over voltage protection and overload protection, short-circuit protection
Application (Should be 12 V and not exceed 24 W) : LED Strip Lights / Cable Modem / Router / Electronic Piano Keyboard / DVR NVR Surveillance System / Security CCTV Camera / Infrared IR Array Illuminator / Portable Radio / Computer PC Case Fan / Motor / Arduino PCB Design / Computer Speakers / Digital Photo Frame / External Hard Drive / Foot Back Neck Shoulder Massager / Fresh Water Bilge Air Pump / And Other 12 Vdc Devices
PACKAGE INCLUDES1 x 5.5/2.1 DC female barrel connector to screw adapter, 1 x 12V 2A 24W power supply with 1.2 mtr power cord,5.5×2.1mm (with inner circlip, compatible with 5.5×2.5mm);Polarity: Inside Positive and Outside Negative

XMP 2.0 SUPPORT: One setting is all it takes to automatically adjust to the fastest safe speed for your VENGEANCE LPX. Tested Voltage 1.35V
ALUMINUM HEAT SPREADER: The unique design of the VENGEANCE LPX heat spreader optimally pulls heat away from the ICs and into your system’s cooling path, so you can push it harder.
DESIGNED FOR HIGH-PERFORMANCE OVERCLOCKING: Each VENGEANCE LPX module is built from an custom performance PCB and highly-screened memory ICs.

The DDR4 RAM is rated at 1.2V and has a latency of CL19. It can operate at a max of 2666MT/s.
A memory upgrade should enable you to load programs faster, improve responsiveness of your laptop and offer smooth multitasking and running data-intensive applications.
You will also see great improvements in even simpler, yet important process of working with Web-browsers and spread sheets.