The Icy Dock ExpressCage MB324SP-B is a consumer-friendly enclosure designed for high storage density, allowing you to fit up to 4 x 2.5” SATA/SAS HDDs/SSDs (7mm-12.5mm) into a single 5.25” bay. It features hot-swap capability for easy drive replacement and supports single-channel SAS (SAS host required). Installation is simplified with tool-less drive mounting, and optional bottom tray screw holes provide extra protection and stability. Cooling is managed by a strategically placed 40mm fan and all-around ventilation, ensuring drives stay cool. An adjustable fan speed jumper offers HIGH, LOW, or AUTO smart cooling options to suit your preferences. This product is RoHS Phthalates Compliant. Country of Origin: China. Payment is accepted via PayPal or any credit/debit card processed via PayPal. All electrical items are shipped with a 3-pin UK plug unless otherwise stated. Images shown are for demonstration purposes only.