https://info.patriotmemory.com/patriot-signature-line-ddr4-computer-memory
• Series: Signature Line
• Form Factor: 288-Pin Unbuffered Dual In-Line Memory Module (UDIMM)
• Technology : DDR4 Non-ECC Unbuffered
• 100% Tested
• RoHS Compliant
• Capacity: 4GB (1x4GB)
• Frequency: 2666MHz (PC4-21300)
• Timings: 19-19-19-43
• (Two) 2 Rank Double-sided module
• Voltage: 1.2V