5 4 Model Name EC541-HD EC550/EC551-HD EC553-DL Platform Desktop Workstation System Processor 4th Gen Intel® CoreTM Processor Intel® Xeon® Processor E3-1200 v3/ 4th Gen Intel® Core™ Processor Socket LGA 1150 Max. Speed 2.2~3.3GHz (Fanless) 2.7~4.0 GHz (Fan) 2.2~4.0 GHz 2.2~3.9 GHz TDP 35/45W (Fanless) 53/54/65W (Fan) 35/45/53/54/65W Cache 2/3/4/6/8M Chipset Intel® H81 Chipset Intel® C226 Chipset BIOS AMI 64Mbit SPI Memory Technology Dual Channel DDR3 1333/1600MHz Max. Capacity 16GB Socket 2 SODIMM Graphics Connector 1 VGA, 1 DVI-D, 1 DP 1 VGA, 1 DP Storage 2x 2.5" SATA 3.0 Drive Bay Expansion PCIe, PCI 3 PCI + 1 PCIe x16 5 PCI (EC550) 4 PCI + 1 PCIe x16 (EC551) 2 PCI 2 PCIe x16 + 1 PCIe x4 Mini PCIe 1 Mini PCIe SIM - - - Audio Audio Codec Realtek ALC886 Ethernet Controller 1 Intel® I210, 1 Intel® I217 LED Indicators Status, HDD LED I/O Ethernet (GbE) 2 2 2 Serial 6 RS-232/422/485 4 RS-232/422/485 USB 4 USB 2.0, 2 USB 3.0 Display 1 VGA, 1 DVI-D, 1 DP 1 VGA, 1 DP Audio Mic-in, Line-in, Line-out DIO 8-bit DIO Buttons Power, Reset Button Power 9~36V DC-in OS Support Win XP (32-bit), Win7, WES 7, Win8, WE8S, Win10 Win7, WES7, Win8, WE8S Mechanism Construction Aluminum + SGCC Mounting Wall Mount Dimensions 235 x 208.2 x 222mm (W x H x D) Environment Operating Temp. 0o C~45o C (Fanless) 0o C~55o C (Fan) 0o C~50o C 0o C~50o C Intel Xeon & 4th Gen Intel Core Processor-based Systems