DDR5 SO-DIMM (Laptop Memory)

DDR5 SO-DIMM (Small Outline DIMM) is the laptop form factor of the DDR5 standard, measuring 69.6 × 30 mm vs the full-size 133.35 × 31.75 mm DIMM. It uses the same electrical spec as desktop DDR5 — 4800 MT/s baseline, on-die ECC, 1.1 V — in a compact package suited to laptop motherboards with 1 or 2 SO-DIMM sockets. Laptops using socketed DDR5 SO-DIMM include Dell Alienware m18 R2, HP Omen 17, MSI GT77HX, Lenovo Legion Pro 7i, and select Razer Blade models. Thin-and-light laptops typically use soldered LPDDR5X instead.