Value RAM's KVR26S19S64 as a 512M x 64-bit (4GB) DDR4-2666 CL19 SDRAM (Synchronous DRAM) 1 Rx 16 memory module based on four 512M x 16-bit FBGA components The SPD is programmed to JEDEC standard latency DDR4-2666 timing of 19-19-19 at 12V This 260-pin SODIMM uses gold contact fingers Power Supply VDD 12V Typical VDDQ 12V Typical VPP 25V Typical VDDSPD 22V to 36 V Nominal & dynamic on-die termination (ODT) fordata strobe & mask signals Low-power auto self refresh (LPASR) Data bus inversion (DBI) for data bus On-die VREFDQ generation & calibration Single-rank On-board I2 serial presence-detect (SPD) EEPROM8 internal banks; 2 groups of 4 banks each Fixed burst chop (BC) of 4 & burst length (BL) of 8via the mode register set (MRS) Selectable BC4 or BL8 on-the-fly (OTF) Fly-by topology Terminated control command & address bus PCB Height 118 (3000mm) Ro HS Compliant & Halogen-Free Series Kingston Value RAMDDR Type SODIMM DDR4 Size 1 x 4GBSpeed 2666 MHz Compliance PC4-21300 Pins 260-pin CAS Latency 19-19-19 Data Integrity Check Non-ECCVoltage 12V