Apacer 8GB DDR4 2666Mhz Desktop Memory, Retail Box , Limited 3 Year Warranty. 

Features
• Product Type: RAM memory
• Capacity: 8 GB
• Memory Type: DDR4 SDRAM - DIMM 288-pin
• Upgrade Type: Generic
• Data Integrity Check: Non-ECC
• Speed: 2666 MHz (PC4-21300)
• Latency Timings: CL19 (19-19-19-40)
• Features: Single rank, unbuffered
• Voltage: 1.2 V