The ASUS PB62 runs DDR4-3200 SO-DIMMs — 64 GB across two slots

The ASUS PB62 runs DDR4-3200 SO-DIMMs — 64 GB across two slots

Dual SO-DIMM slots, DDR4-3200, max 64 GB via 2×32 GB sticks. The 3200 MHz speed matches the ceiling of the DDR4 standard, and two slots gives you dual-channel bandwidth. This is the sensible sweet spot for a business mini PC: fast enough, big enough, and nothing exotic required.