Caddy (Tray) 3.5 "SFF for HP Proliant Gen6 and Gen7 servers and storage - 373211-001 .
The product is delivered together with 4 screws for mounting the hard disk or SSD.
If you want to install SSDs or 2.5 hard drives in these caddies, we recommend the 3.5 "to 2.5" adapter. It can be ordered from the link HERE.

Compatible systems:

Proliant DL Series: DL1000 DL120 (G5 G6 G7) DL140 (G3) DL145 (G3) DL160 (G5 G5p G6 G7) DL160se (G6 G7)
Proliant DL Series: DL165 (G5 G5p G6 G7) DL170e (G6) DL170h (G6) DL2x170h (G6) DL4x170h (G6)
Proliant DL Series: DL180 (G5 G6 G7) DL185 (G5) DL320 (G3 G4 G5 G5p G6 G7) DL320sDL370 (G6 G7)
Proliant DL Series: DL380 (G4 G5 G6 G7) DL385 (G5 G5p G6 G7) DL580 (G4 G5 G6 G7) DL585 (G2 G5 G6 G7)
Proliant DL Series: DL785 (G5 G6)
Proliant ML Series: ML110 (G7) ML150 (G5 G6 G7) ML310 (G5p) ML330 (G6) ML350 (G5 G6 G7) ML370 (G5 G6 G7)
HPE Storage Arrays: D2600 MDS600 MSA60 60 Modular Array StoreAll 9730
HPE StoreEasy: 1430 1440 1530 1540 1630 1640 1830 1840 5530 X1400 X1500 X1600 X1800 X3400 X3800
HPE StoreVirtual: P4000 P4100 P4300 (G2) P4500 (G2)