1、Compatible: Designed for Dell G15 5520 5521 5525 and for Alienware M15 R5 M15 R6 series gaming laptops, helps to add 2280 NVMe SSDs to laptops with Slot 2 or Slot 1, for Dell 5510 5515 5511 can be extended to install, comes with 2242 SSD, can be installed in place of 2280 SSD, with X8MY9 support bracket. 2、Thermal Pads: The heatsink has been attached with three different sizes of thermally conductive silicone pads (1mm thermally conductive silicone pads x1, 0.8mm small thermally conductive silicone pads x5, 0.5mm small thermally conductive silicone pads x5), peeling off the plastic film to make better contact with the SSD, full coverage heat dissipation, screws to fix it, sturdy and durable, together with thermal silicone pad to make the heat dissipation one step quicker. 3、Part Number: For Dell G15 5520 5521 5525 laptop part number: 26X1Y, 026X1Y, CN CN026X1Y, 29GT8, 029GT8, CN 029GT8, ET36L000210, SIN0 ET36L000300, for Alienware m15 R5 m15 R6 series laptop part number: 26X1Y 026X1Y, support bracket part number: X8MY9, 0X8MY9, CN 0X8MY9. 4、Easy To Install: SSD heatsink thermal cover is easy to install, just insert the bracket, place the drive in place, place the heatsink on top and tighten the screws, precise size, perfect fit. 5、Replacement: Perfect for replacing damaged or old SSD heatsink covers, maximize heat transfer and dissipation to keep your gaming laptop cool during gaming.