|  |  | UNO-4671A-A33E | UNO-4671A-A44BE | 
        
            | I/O Interface | USB | 4 x USB (include 1 x internal USB), UHCI, Rev. 2.0 compliant | 4 x USB (include 1 x internal USB), UHCI, Rev. 2.0 compliant | 
        
            | General | Mounting | 2U Rackmount | 2U Rackmount | 
        
            | Power Consumption | 30 W @ 24 V (Typical) | 30 W @ 24 V (Typical) | 
        
            | Certifications | CE, FCC class A, CCC, Electricity IV level for China,(Compatible IEC 61850-3, IEEE 1613) | CE, FCC class A, CCC, Electricity IV level for China,(Compatible IEC 61850-3, IEEE 1613) | 
        
            | Weight | < 5.5 kg | < 5.5 kg | 
        
            | Dimensions | 2U (440 x 220 x 88 mm/17.3" x 8.6" x 3.4") fits into standard 19 inch rack | 2U (440 x 220 x 88 mm/17.3" x 8.6" x 3.4") fits into standard 19 inch rack | 
        
            | Enclosure Housing | SECC | SECC | 
        
            | OS Support | WES 2009, Windows XP, Windows CE 6.0, WES7 and Linux | WES 2009, Windows XP, Windows CE 6.0, WES7 and Linux | 
        
            | Power Requirement | Supports dual power input (Optional) | Supports dual power input (Optional) | 
        
            | Power 1: 100~240 VAC or 100~240 VDC | Power 1: 100~240 VAC or 100~240 VDC | 
        
            | Power 2: 100~240 VAC or 100~240 VDC | Power 2: 100~240 VAC or 100~240 VDC | 
        
            | System Design | Fanless design | Fanless design | 
        
            | Remote Management | Built-in Advantech DiagAnywhere agent on Windows CE/XPe/7 | Built-in Advantech DiagAnywhere agent on Windows CE/XPe/7 | 
        
            | System Hardware | CPU | Intel Atom D510 1.66 GHz | Intel Atom D525 1.8 GHz | 
        
            | Memory | 2 GB DDR2 SDRAM | 4 GB DDR2 SDRAM | 
        
            | Display | VGA , 1920 x 1024 | VGA , 1920 x 1024 | 
        
            | Indicators | LEDs for Power 1&2, IDE, LAN (Active,Link) and Serial (Tx,Rx) | LEDs for Power 1&2, IDE, LAN (Active,Link) and Serial (Tx,Rx) | 
        
            | Reset Button | Yes | Yes | 
        
            | Processor System | Watchdog Timer | programmable 256 levels time interval, from 1 to 255 sec | programmable 256 levels time interval, from 1 to 255 sec | 
        
            | I/O Interface | Serial Ports | 10 Ports, 2 x RS-232 ,4×RS-422/485,4×RS-485(Automatic RS-485 data flow control) | 10 Ports, 2 x RS-232 ,4×RS-422/485,4×RS-485(Automatic RS-485 data flow control) | 
        
            | LAN | 6 x 10/100Base-T RJ-45 ports | 2 x 10/100/1000Base-T and 4 x 10/100 Base-T RJ-45 | 
        
            | Communication Speed | RS-232: 50~115.2kps,RS-422/485:50~921600 bps | RS-232: 50~115.2kps,RS-422/485:50~921600 bps | 
        
            | Extension | 1 x PCI-104 | 1 x PCI-104 | 
        
            | Environment | Temperature (Operating) | IEC 60068-2-2 with 100% CPU/ I/O loading, 48 hrs,-20 ~ 60°C (-4 ~ 140°F) | IEC 60068-2-2 with 100% CPU/ I/O loading, 48 hrs,-20 ~ 60°C (-4 ~ 140°F) | 
        
            | Humidity (Operating) | 20 ~ 95% (Non-condensing) | 20 ~ 95% (Non-condensing) | 
        
            | Vibration Protection | IEC 68 2-64 (Random 1 Oct./min, 1hr/axis.) CompactFlash: 2 Grms @ 5 ~ 500 Hz | IEC 68 2-64 (Random 1 Oct./min, 1hr/axis.) CompactFlash: 2 Grms @ 5 ~ 500 Hz | 
        
            | Shock Protection | IEC 68 2-27CompactFlash®: 30 G half sine, 11 ms; HDD: 20 G half sine, 11ms | IEC 68 2-27CompactFlash®: 30 G half sine, 11 ms; HDD: 20 G half sine, 11ms |