By enabling more effective data transfer rates, this configuration improves the system's overall performance. DDR (Double Data Rate), DDR2, DDR3, DDR4, & the most recent DDR5lucky jili slots are among the different types of DIMM slots that offer increases in speed, bandwidth, and power consumption. The functionality of DIMM slots is also significantly influenced by their physical properties. A DIMM slot typically measures 5 points 25 inches in length and features a notch to prevent the memory module from being installed incorrectly.