9.5mm Universal Sata 2nd Hdd Ssd Hard Disk Drive Caddy Bay Adapter For Asus X550c X550b X550v X550d X450c X450 Series Laptop - Hdd & Ssd Enclosure - AliExpress
2nd SATA Hard Drive SSD HDD Caddy for ASUS S550 S551 X550 X550L N550 K550 K551L | eBay
9.5mm Sata 2nd Ssd Hdd Caddy For Asus Asus X550c X550b X550v X550d X450c X450 Hard Disk Drive Caddy - Harddisk & Boxs - AliExpress