The PHD4 allows for installation of one 3.5″ hard drive. However, doing so means no other drives such as a slimline DVD drive or a 2.5″ HDD/SSD can be used.
Shuttle Accessory PHD4 3.5 ich HDD rack for XH81 XH81V XH97V Retail
Out of stock
PHD4 Accessories
$14.99
Out of stock