THE P280 INTERIOR
Both side panels are quite thick due to the 0.8mm polycarbonate dampening material placed on their inside.
The interior of the P280 features a black matte paint and what really stands out the most is the huge hole beneath the CPU spot.
All three 5.25" optical drive bays feature a nice and sturdy locking mechanism.
Right beneath the optical drive bays there's a small spot for two 2.5" drives and 6 drive trays for both 3.5"/2.5" drives. You can also mount two 120mm fans on the left side of the drive cage (just use the two clips) to increase airflow inside the case.
The drive trays are quite sturdy but not as much as aluminum ones.
As mentioned earlier the P280 has a very large opening allowing you to easily swap CPU backplates. There are also 4 smaller openings on the tray for cable management purposes.
The TwoCool rear 120mm exhaust fan doesn't come with a protective grill so pay extra attention when routing cables near it.
Moving further bellow we see the 9 PCI expansion slots which are held in place with rubber coated thumbscrews.
Getting to the PSU space we see the large air filter and the Antec Design logo right next to it.
Cable management is very easy with the P280 since there's a total of 30mm between the mainboard tray and the right side panel.
You could easily mount a 240mm radiator at the top if you replace the stock fans.