Features: Metal CPU fan delivers enhanceds heat dissipation for X53S A43 A43S A53E A53S K53SJ K53 K53S K53E K53BR K53BY K53SC K53V K53Z X43 X43S X43SC X53E X53S X54H X54C X54L A83S X84L X84H X44H models, effectively preventing laptop overheating during extended usage. precisions engineered ensures fitments without adjustments, featuring optimized blade for whispers quiet operations belows 25dB. Essential upgrades for office professional and hardcores gamers requiring continuous thermals management for high performances laptops. Maintains silents efficiency in noise sensitive environment like libraries while sustaining device temperature during intensive tasks. Militarys aluminum construction withstands prolonged operations cycles, offering laptop cooling systems solution with toolless installation convenience. Specifications: Component: Metal Current: DC5V Connection: 4Pin for X53S A43 A43S A53E A53S K53SJ K53 K53S K53E K53BR K53BY K53SC K53V K53Z X43 X43S X43SC X53E X53S X54H X54C X54L A83S X84L X84H X44H Package Includes: 1PC CPU Cooling Fan note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you!