|  | ASR-3272-12A1E | ASR-3272E-12A1E | ASR-3272W-12A1E | 
        
            | Form Factor | Form Factor | 2U 12-Bay | 2U 12-Bay | 2U 12-Bay | 
        
            | Processor System | CPU | LGA 1155 Xeon 1200V2 or 3rd Generation Core i3 processor | LGA 1155 Xeon 1200V2 or 3rd Generation Core i3 processor | LGA 1155 Xeon 1200V2 or 3rd Generation Core i3 processor | 
        
            | Chipset | Intel C216 | Intel C216 | Intel C216 | 
        
            | Disk Drive Bay | 3.5"/2.5" Front-Accessible | 12 | 12 | 12 | 
        
            | Front I/O Interface | USB2.0 | 2 | 1 | 1 | 
        
            | Rear I/O Interface | USB3.0 | 2 | 2 | 2 | 
        
            | Power Supply | Input Range | AC 115 ~ 230 V (full range) | AC 100 V ~ 240 V | AC 100 V ~ 240 V | 
        
            | Physical Characteristics | Dimensions (W x H x D) | 482 x 177 x 657 mm (19'' x 7'' x 26'') | 699 x 432 x 88 (mm) | 699 x 432 x 88 (mm) | 
        
            | Environment | Operational Temperature | 0 ~ 40° C (32 ~ 104° F) | 0 ~ 40° C (32 ~ 104° F) | 0 ~ 40° C (32 ~ 104° F) | 
        
            | Miscellaneous | LED Indicators | Power, HDD | Power Status, System Fail, LAN LED | Power Status, System Fail, LAN LED | 
        
            | Value-added | JBOD Expansion Max. | 60 HDDs | 60 HDDs | 60 HDDs |