For the guarantee, contact the service center,there is no guarantee from our siteå®æ¹å®åä¿ä¿®ï¼æ们ç½ç«æ ä¿ä¿®Corsair Vengeance/DDR4/kit/16 GB: 2 x 8 GB/SO-DIMM 260-pin/3000 MHz / PC4-24000/unshielded CMSX16GX4M2A3000C18 Vengeance Low Profile heat spreaders have a reduced height of 1.03'. They are designed for high-performance systems with extra-large CPU coolers, small form factor system builds, or any other space-constrained application where you need high-performance memory, but standard Revenge Modules may not fit. Product description: CORSAIR Vengeance - DDR4 - kit - 16 GB: 2 x 8 GB - SO-DIMM 260-pin - 3000 MHz / PC4-24000 - unshielded Product type: Souvenir set Capacity: 16 GB: 2 x 8 GB Memory type: DDR4 SDRAM - SO-DIMM 260-pin Upgrade Type: Generic Data Integrity Check: Non-ECC Speed: 3000 MHz (PC4-24000) Schedules for delay: CL18 (18-20-20-38) Features: Unrelated Voltage: 1.2 V