Corsair CMSX4GX4M1A2400C16 Vengeance 4GB SODIMM DDR4 RAM

The Corsair Vengeance CMSX4GX4M1A2400C16 is a single 4GB DDR4 SODIMM module rated at 2400MHz with CL16-16-16-39 timings at 1.2V. On its rated 6th-generation Intel Core platforms, those specs represent a step up from the DDR3-1600 memory common in older notebooks — DDR4's wider bus and higher clock provide measurably more bandwidth, which matters most in scenarios where the integrated GPU is sharing system memory for graphics tasks, or where background application memory pressure is high. The 1.2V operating voltage is the DDR4 standard and runs approximately 15–20% more efficiently than DDR3's typical 1.5V, a useful property in a thermally constrained notebook chassis.

This module is built for one job: straightforward capacity and speed upgrades in compatible 6th-gen Intel notebooks. The auto-overclocking feature removes the friction of BIOS configuration — important in an audience that may be upgrading a work laptop rather than tuning a gaming rig. Where it falls short for power users is the single-channel penalty: a lone 4GB stick operates in single-channel mode, cutting memory bandwidth in half compared to a matched dual-channel kit. For anyone rebuilding memory from scratch, a matched pair of two 4GB or two 8GB DDR4-2400 sticks is the more efficient configuration. As a complement to an existing 4GB module, this brings total capacity to a workable 8GB at a cost-effective price point.