Model # Image Form
Factor		 Front
USB Port		 Internal
Drive Bay		 Hot Swappable
Drive Bay		 Optical
Drive Bay		 Expansion
slots		 Mainboard Size(inch)
FS-191101.5U2 (USB 2.0)2 x 2.5"HDD1 x 3.5"HDD1Accept standard size

FS-191121.5U2Internal: 3.5" x 3; External: 2.5" x 12 x PCI or 1 x PCI-EAccept standard size

FS-191201.5U21 x 2.5"HDD or 1 x 3.5"1 x 3.5 "HDD1Accept standard size

FS-19110
FS-19110 is a 1.5U rackmountable chassis w/ 1 x hot swappable 3.5" HDD drive bay and 1 x slim optical drive bay.Also room for 2 x 2.5" internal HDD and FLEX ATX power supply.
Drives:
• Internal Drive Bay : 2 x 2.5"HDD
• Hot Swappable Drive Bay : 1 x 3.5"HDD

Motherboard Size:
• Accept standard size

Dimension:
• 19.00 x 2.65 x 10.02 inches
• 482.6 x 67.3 x 254.5 mm
FS-19112
FS-19112 is another unique 1.5U chassis feature 1 x 2.5"hot swappable drive bays, front IO, front mounted power supply and 2 x expansion slot. Also support FLEX ATX power supply.
Drives:

Motherboard Size:
• Accept standard size

Dimension:
• 19.00 x 2.55 x 11.40 inches
• 482.6 x 64.8 x 289.6 mm
FS-19120
FS-19120 is a 1.5U rackmountable chassis. Unique feature included front access IO with 2 x hot swappable 3.5" HDD drive bay. Also support 1 x expansion slot and FLEX ATX power supply.
Drives:
• Internal Drive Bay : 1 x 2.5"HDD or 1 x 3.5"
• Hot Swappable Drive Bay : 1 x 3.5 "HDD

Motherboard Size:
• Accept standard size

Dimension:
• 19.00 x 2.55 x 10.80 inches
• 482.6 x 64.8 x 274.3 mm