|   | 
            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 |