Patriot Signature Line 16GB DDR4-3200 CL22 Laptop Memory SO-DIMM, 1.2V, Non-ECC, PC4-25600, 260-pin

The Patriot Signature Line PSD416G320081S is a 16GB 260-pin DDR4 SO-DIMM for laptops and mini PCs rated at 3200 MT/s with CL22 latency at 1.2V, for DDR4 laptops, mini PCs and all-in-ones that take SO-DIMM memory.

It comes as one 16GB module, giving 16GB in total and up to 25.6 GB/s of peak bandwidth per module (PC4-25600). Adding or replacing a SO-DIMM is usually the simplest upgrade a laptop can get: more capacity means fewer slowdowns with many browser tabs, Office files and video calls open together.

Typical uses: upgrading an office or student laptop that struggles with Windows 11, Teams and many browser tabs, replacing a failed module, or populating a mini PC used as a small server or media box.

• 1 × 16GB DDR4 SO-DIMM module
• Manufacturer packaging — memory installs tool-free into the slot, no cables or drivers needed

• It is a standard JEDEC module: the system reads its settings automatically and runs it at 3200 MT/s CL22 if the platform supports that speed — no BIOS tuning. On a platform limited to a lower speed it simply runs slower, which is normal.
• A single module runs in single-channel mode. For dual-channel bandwidth (noticeably better in games and with integrated graphics) pair it with a second identical module — buying a matched kit is the safer route.
• 16GB is the sweet spot for everyday work, Office and most games, with room for a browser full of tabs alongside.
• Mixing it with a different existing module usually works at the speed of the slower one; for guaranteed dual-channel behaviour replace both modules with an identical pair.
• Do not confuse it with PSD416G32002S (dual-rank, double-sided) — same capacity and speed, different module build; when matching an existing module, order the same part number.
• Installation takes a few minutes: power off, unplug the charger (and the battery if it is removable), open the memory cover or base panel, insert the module at an angle into the slot and press it down until both side clips lock.
• After installation, Windows Task Manager (Performance → Memory) shows the total capacity, the speed in MT/s and how many slots are used — a quick way to confirm everything is detected.

• DDR5 or DDR3 laptops — the notch is in a different position
• Desktop motherboards (they take full-size DIMMs)
• Laptops with soldered memory and no free SO-DIMM slot, including Apple MacBooks