DD*3 compatible with 2.5SSD*3 I/O Ports : 3.5 HDD*3 compatible with 2.5SSD*3 Extension Slots : 7 Dust Filters : Configuration of dust-proof net: upper cover dust-proof net and bottom plate dust-proof net Tempered Glass : 0.8 mm Packaging Size (mm, W x H x D) : 540*310*505MM Accessories Included: Parts package NW Weight: 8.64 KG GW Weight : 9.7 KG Product size : 434*245*473MM