1.Optical drive position hard disk bracket, simply speaking, is to remove the notebook optical drive, and install a solid-state / mechanical hard disk at the location of the notebook optical drive to realize the multiple improvement of the operating speed and capacity of the notebook 2.Select the hard drive bay .The thickness of the optical drive conforms to 12.7mm/9.5mm .Whether the interface of the optical drive is SATA interface, IDE interface is not supported 3. The advantages of installing solid-state hard disks, improve boot and running speed, and expand hard disk capacity 4. As fast and reliable connection as the main HDD. Fully integrated into the laptop, no cables/PSU/software drivers required. 5. Dual boot, support to install the second operating system on the second HDD/SSD and select boot. 6. Installation .Unpack the adapter and the new hard drive .Load SSD/HDD hard disk .Insert the driver into the adapter at the minimum angle until the connector is locked .Tighten the bottom screw to fix the SDD/HDD hard disk .Slide the part into the optical drive bay until it locks into place 7. Specifications Interface: SATA Thickness 9.5MM Material: aluminum and plastic size:128mm*128mm*9.5mm(5in*5in*0.37) 8.Package includes: 1 x 9.5MM SSD HDD Hard Drive Tray 1 x Universal bezel 1 x screwdriver 4 x M3 screws【Note】The optical drive baffle plate of each machine is different. The baffle plate we present is a universal straight face baffle, which can be used when installed, but it is not very beautiful. You can remove the baffle from the original optical drive panel and install it into the bracket (some original baffles cannot be installed or removed). 【Dual Channel Switch】 There are two channels on the side of the bracket, left and right channels, which are compatible with a variety of brand notebook computers (some computer customized channels will be different, you need to try the left channel and the right channel separately). 【Lightweight and Durable】Aluminum alloy material, light weight, fast heat dissipation, good shock resistance, hollow design at the bottom, strengthening air circulation and heat dissipation, locking the hard disk with four screws, accurate hole position, preventing shaking and vibration, and protecting the hard disk from damage. 【9.5mm SATA 2nd Hard Drive Caddy】Support 2.5" SATA HDD SDD, compatible with 9.5MM CD DVD drive slot, it can become a part of RAID array and can be booted. (Note: 1. Only supports SATA interface, not IDE interface. 2. What is the size of notebook optical drive (This model supports 9.5MM optical drive). 【2ND SSD HDD Hard Drive Tray】Add a second HDD SDD hard drive to the laptop notebook computer by replacing the optical drive, achieving a multiple increase operating speed and capacity.your laptop performance will be greatly improved.