DDR4 SO-DIMMs have 260 pins (rather than DDR3's 204 pins), which are also spaced closer (0.5 rather than 0.6 mm), and are 2.0 mm wider (69.6 versus 67.6 mm), but remain the same 30 mm in height.
DDR4 модули SO-DIMM имеют 260 контактов (а не 204), которые расположены ближе друг к другу (0,5 мм, а не 0,6).