Samsung M471A1K43BB0 2 x 8GB Laptop Memory Module 1Rx8 DDR4 SO-DIMM PC4-17000 2133MHz 260-Pin Non-ECC CL15 1.2V (2-Pack) Model: M471A1K43BB0 Part Number: M471A1K43BB0-CPB. Compatible part numbers: PC4-2133P-SA0-10. Memory capacity: 16 GB (2 x 8 GB) Memory type: DDR4 SDRAM Pins: 260 pins. Speed: 2133 MHz. Bus type PC4-17000. Rating: Single (1Rx8) CAS Latency: CL15 Error Correcting (ECC): Non-ECC Voltage: 1.2V Form Factor: SO-DIMM Type: Laptop Memory Kit.