Desktop Mini (DM)

• Size: Roughly 7" x 7" x 1.3" (Ultra-small).

• RAM: Uses 2x Laptop-sized (SO-DIMM) DDR4 slots.

• Storage: 1x 2.5" SATA drive bay and 1x M.2 PCIe slot.

• Power: Requires an external 65W or 90W HP power brick.

• Note: Often comes in a 35W or 65W version; ensure your CPU TDP matches the thermal limits of the unit.

Small Form Factor (SFF)

• Size: Compact desktop (3.9" x 13.3" x 14.9").

• RAM: Uses 4x Standard Desktop (DIMM) DDR4 slots.

• Expansion: Includes Low-Profile PCIe slots (1x x16, 1x x4, 2x x1).

• Power: Internal 200W proprietary power supply.

• Storage: Two 3.5" bays and one 2.5" bay.

Tower (TWR)

• Size: Full-sized micro-tower.

• Expansion: Full-height PCIe slots; most expandable for GPUs.

• Power: Internal 280W or 400W proprietary power supply.

• Storage: Most flexible with multiple 3.5" and 5.25" bays.

3. Port Selection (Standard)

• Front: 2x USB 3.0, 1x USB Type-C (DM only), Headphone/Microphone jacks.

• Rear: 6x USB 3.0 (SFF/TWR), 2x DisplayPort (supports 4K), 1x VGA, 1x RJ-45 (Gigabit Ethernet).

• Graphics: Integrated Intel HD 530 (via CPU).