| SEL-3350 | SEL-3355 | SEL-3360S | SEL-3360E | |
|---|---|---|---|---|
| CPU | Intel Atom x5-E3940 quad-core 1.6 GHz 64-bit | Intel Xeon E3-1505L quad-core 2.0 GHz 64-bit Intel Xeon E3-1505M quad-core 2.8 GHz 64-bit +  | Intel Xeon E3-1505L quad-core 2.0 GHz 64-bit | |
| Memory | 8 GB DDR3L RAM with ECC | 4 GB standard to 64 GB optional DDR4 RAM with error-correcting code (ECC) | ||
| Storage | Up to 2 SSDs, 32 GB to 7,680 GB each, 2.5" SATA III (6.0 GB/s) Multiple SSD options available  | Up to 4 SSDs, 32 GB to 7,680 GB each, 2.5" SATA II (3.0 GB/s) Multiple SSD options available  | Up to 2 SSDs, 32 GB to 7,680 GB each, 2.5" SATA II (3.0 GB/s) Multiple SSD options available  | |
| Storage Redundancy | N/A | RAID 0, 1, 5, and 10 (hot-swappable) | RAID 0 and 1 (hot-swappable) | |
| Chassis | 19" rack mount, 1U or 3U 19" panel mount, 1U or 3U  | 19" rack mount, 3U 19" panel mount, 3U  | Conductive panel-mount or standard convection wall-mount cooling | |
| Expansion Slots | Expansion option for 32 additional serial ports (3U only) Expansion option for 24 digital inputs and 8 digital outputs (3U only)  | 5 PCI expansion card slots (1 PCI, 2 PCIe x1, 2 PCIe x4) | None | 2 PCI expansion card slots (1 PCIe x1, 1 PCIe x4) | 
| Power Supply Options | Single (1U) Single or redundant: SEL-9325 (3U)  | Single or redundant: SEL-9331 | Single (external): SEL-9331 | Single (internal): SEL-9331 | 
| Power Supply Voltages | 125/250 Vdc or 120/240 Vac; 48/125 Vdc or 120 Vac; or 24/48 Vdc | 125/250 Vdc or 120/240 Vac; LV 48 Vdc | ||
| Display | Supports up to 3 monitors 4K maximum resolution 1 DisplayPort 1.2 output with Multi-Stream Transport (MST)  | Supports up to 3 monitors 4K maximum resolution 1 DisplayPort 1.2 output with MST 2 DVI-D outputs  | ||
| USB | 2 front USB 3.1 ports 4 rear USB 2.0 ports 1 internal USB 2.0 port  | 2 front USB 3.1 ports 4 rear USB 3.1 ports 1 internal USB 2.0 port  | ||
| Ethernet | 1 front Gigabit port, copper RJ45
4 rear Gigabit ports with the following options:
  | 2 rear Gigabit ports, copper RJ45 Up to 8 additional ports, copper or fiber small form-factor pluggable (SFP), via SEL-3390E4 PCIe cards  | 2 rear Gigabit ports, copper RJ45 | 2 rear Gigabit ports, copper RJ45 Up to 8 additional ports, copper or fiber small form-factor pluggable (SFP), via SEL-3390E4 PCIe cards  | 
| Serial | 16 rear RJ45 EIA-232/422/485 ports (1U) Up to 48 rear RJ45 EIA-232/422/485 ports (3U)  | 2 rear DB-9 EIA-232 ports Up to 24 additional ports, RJ45 EIA-232/422/485, via SEL-3390S8 PCIe cards  | 2 rear DB-9 EIA-232 ports | 2 rear DB-9 EIA-232 ports Up to 12 additional ports, RJ45 EIA-232/422/485, via SEL-3390S8 PCIe cards  | 
| IRIG-B | BNC IRIG-B input and output COM 1–16 serial port IRIG-B outputs COM 17–48 serial port IRIG-B outputs (3U only)  | COM 1 serial port IRIG-B input Optional SEL-3390S8 serial port IRIG-B input and outputs  | COM 1 serial port IRIG-B input | COM 1 serial port IRIG-B input Optional SEL-3390T Time and Ethernet Adapter Card or SEL-3390S8 Serial Adapter Card for IRIG-B input and output. | 
| Audio | Digital audio output: Intel Display Audio | Analog 3.5 mm TRS jacks: line input, line/headphone output, microphone input Digital audio outputs: DVI-D1, DVI-D2, Intel Display Audio  | ||
| Digital and Analog Inputs/Outputs | 1 universal input/1 Form C digital output—alarm contact (standard) Expansion option for 24 digital inputs and 8 digital outputs (3U only)  | Form C digital output—alarm contact | ||
| BIOS | UEFI boot support Secure boot support  | UEFI and legacy boot support Secure boot support  | ||
| Trusted Platform Module (TPM) | Infineon SLB 9670AQ TPM 2.0 | |||
| Operating Temperature Range | –40° to +85°C (–40° to +185°F) | With E3-1505L CPU: –40° to +75°C (–40° to +167°F) With E3-1505M CPU: –40° to +60°C (–40° to +140°F)  | With E3-1505L CPU: –40° to +60°C (–40° to +140°F) | |
| Supported OSs | SEL OSs:
 
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| Other Features | Conformal coating | |||
| Certifications | 
 
 
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+Model option