| HDD
 
| HDD
 
| 2 * WD Red 3TB 3.5inch SATA6 Internal Hard Drive
 
| 2 * WD Red 3TB 3.5inch SATA6 Internal Hard Drive
−
| 2 * £119 = £238
+
| 2 * £120 = £240
 
| 2 * -4.4W = -8.8W
 
| 2 * -4.4W = -8.8W
Exception encountered, of type "Error"