A deep dive into the CAMM2 memory standard — how it works, why it matters, and what it means for the future of laptops and compact systems.
SO-DIMM (Small Outline Dual In-line Memory Module) has been the standard form factor for laptop memory since 1997. While it has served us well for nearly three decades, it has reached fundamental physical limitations that prevent it from keeping pace with modern memory technology.
CAMM2 (Compression Attached Memory Module 2) is a new JEDEC-standardized memory form factor that solves all of these problems. Originally developed by Dell as "CAMM" for their Precision workstations, it was adopted by JEDEC in 2023 as an industry standard.
Specification | SO-DIMM | CAMM2
--- | --- | ---
Height | 30mm | ~5mm (mounted)
Area footprint | 67.6 x 30mm per slot | 96 x 78mm single module
Channels | 1 per module (2 slots needed) | 2 on single module
Max capacity (per slot) | 32GB typical | 128GB single module
Connector | Edge connector | 600+ compression pins
CAMM2 achieves its compact form factor by laying flat against the motherboard and using compression pins instead of an edge connector. The module is pressed down onto contact pads using a metal bracket with screws.
Unlike SO-DIMM's edge connector (where the module inserts into a slot at an angle), CAMM2 uses an array of 600+ spring-loaded pins arranged in a grid on the module's underside. When the bracket compresses the module against the motherboard:
This shorter signal path is the key innovation — it enables much faster memory speeds because electrical signals have less distance to travel and less electromagnetic interference.
CAMM2 on a single module can achieve what previously required two SO-DIMM slots:
A single CAMM2 module can hold up to 128GB of RAM — equivalent to four 32GB SO-DIMM sticks, but in a fraction of the space.
The LPCAMM2 variant (using LPDDR5X memory) offers:
CAMM2 frees up significant internal volume:
As of early 2026, CAMM2 modules are available from:
Pricing remains higher than equivalent SO-DIMM capacity, but is decreasing as adoption grows.
CAMM2 represents the most significant change in laptop memory since SO-DIMM itself was introduced. By solving the physical, electrical, and architectural limitations of the old standard, it enables a new generation of thinner, faster, more efficient laptops without sacrificing upgradeability.
If you are buying a laptop for professional use or long-term ownership, looking for one with CAMM2 support ensures your investment is aligned with where the industry is heading.