I got a used Antec DP501 a while back. It has two 2.5" drive bays holes on the back. But it only came with one caddy when I got it. I have a 2TB Seagate ST2000LM007 I really want to put in, but I'm not sticky taping or zip tying a hard drive. There's no part number on the caddy and I can't find it online, can someone help? Thanks!