S331-A 8.3L
S331, 8.3L volume, but it accommodates a slim ODD,3.5 and 2.5 HDD, 2.5 HDD, 4x low-profile PCI cards, it offers exceptional flexibility and scalability for enhanced multi-function applications!
Advanced Thermal solution, Highly expandable,Detachable drive cage, and along with quick release side panel, fully too-less design!
Support Micro ATX motherboard and standard TFX type power supply.

: no more
: S335 8.3L
Form Factor (Midi, Micro, Mini ITX, Full)SFF Desktop Micro
ChassisSGCC 0.6mm
PSU Form FactorBottom/TFX
M/B Form FactorMicro-ATX (Max 244*244mm)Mini-ITX
Front PanelABS
Top Panelmetal
Side PanelLeftmetal cover
Rightmetal cover
External Drive Bay(s)Slim ODD (9.5mm)*1
3.5"*0
Internal Drive Bay(s)3.5" (HDD)*1
2.5" (SSD)*1
3.5“  or 2.5“ HDDx 1, 2.5“SSD x 1
I/OButtons*2
USB2.0 Port(s)*2
USB3.0 Port(s)*2
HD Audio Support*1
Type CN/A
Cable Management Part(Option)
Card readerN/A
Security /COM portkensington lock,Pad lock
Cooling Fan  SupportFront1x8025mm(Fan optional)
Slots*4
DimensionsChassis327x 95x 266mm(8.3L)W/O Front Panel
Full Case (inc Fascia)327x 95x 283mm(8.8L)With Front Panel
Net Weight (Kg)3.0kgs
Gross Weight (Kg)4.0kgs
VGA Card Lengthup to 220mm
CPU Cooler HeightUP TO 50mm