<ul><li>-2 power supply slots</li><li>-1 minimum power supply required</li><li>(ordered separately)</li><li>-2 fan tray slots</li><li>-The customer must order fan trays, as fan trays</li><li>are not included with the switch. This system</li><li>Requires two same-direction airflow fan trays</li><li>to function properly. The system should not</li><li>Be operated with only one fan tray for more</li><li>Than 24 hours.</li></ul><br><br>JC772A HP ProCurve 5900AF-48XG-4QSFP 48-Ports Gigabit Ethernet S (Certified Refurbished)About Refurbished Products<br>This Product has been professionally refurbished and tested by a Certified Technician. We make every effort to clean and restore the product so you have a great experience with it. This product may have minor cosmetic issues like light scuffs or scratches and this should not hinder the performance of your device. 90 Day Limited Warranty<br>This product is covered by a minimum 90 day repair/replacement warranty. Specific warranty information and how to submit a warranty claim is included with your product.

HP JC772A 5900AF-48XG-4QSFP+ 48x Port XG 4x QSFP+ L3 Switch (Renewed)