Rugged, Fully Sealed, Low Cost, Intel® Xeon® E5 CPU Server with Removable Drive(s), Switch and Add-in I/O

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Computing Features

- Rugged server intended for local data processing, storage, video, networking and I/O
- Designed with Intel®’s highest performance, server-class, embedded processor and chipset
- Intel® Xeon™ Broadwell-EP CPU up to 18 cores operating up to 2.1GHz (Xeon® E5-26xx v4)
- Support for Hyper-Threading on each core for total of 36 logical cores
- Supports up to 256GB of DDR4 memory with ECC
- Up to four removable 2.5” SATA or NVMe SSD drives (optional encrypt/secure erase/write-protect)
- Fixed M.2 SATA or NVMe SSD for OS boot (optional encrypt/secure erase/write-protect)
- Optional fixed single or dual mSATA drives (lose SAM I/O™)
- Optional AMD® Radeon® embedded GPU E8860, up to 768 GFLOPS
- Optional NVIDIA® Quadro® GPU M2000M, up to 1.32 TFLOPS
- Intel® Virtualization Technology (VT-x/VT-d2) and Trusted Execution Technology (TXT)
- Trusted Platform Module (TPM) 2.0 for secure operation
- Converged Platform Power Management (CPPM) for power saving

I/O and Expansion Options

- One Gigabit Ethernet port with TCP/IP offloading for system management
- Optional intelligent Layer 2/3 Ethernet Switch with dual 10GbE ports and 4, 8, or 12 One Gigabit Ethernet ports
- Optional two additional 10 Gigabit Ethernet ports (totaling four when equipped with Switch)
- Optional additional 12 one Gigabit Ethernet ports (totaling 24 one Gigabit Ethernet ports)
- Four USB 2.0 ports - Two Serial ports with RS-232/422/485 options
- Eight GPIO lines for user-defined control
- One console video port up to 1920 x 1080 via DVI or VGA
- Optional two HD-SDI SMPTE 292M video out via mini-BNC from MXM module site
- Two SAM I/O™ sites for additional I/O (lose mSATA SSD)
- One XMC, MXM, SAM I/O™ site for additional I/O
- 16MB flash BIOS with optional write-protect/secure erase and battery-less operation
- Real Time Clock (RTC) with field-replaceable battery
- Panic support for system Zeroize via Secure Erase of mass storage, BIOS and Ethernet switch (optional)

SWaP-E (Size, Weight and Power – Efficiency)

- Greatest computing density, most number of embedded cores and RAM in the industry
- Ultra-low SWaP only 11.75” x 7.75” x 2.0” @ 10 lb. and as low as 175W
- MIL-STD 810G, MIL-STD 1275D, MIL-S-901D, DO-160D, MIL-STD 461F, up to IP66 compliant
- Operates up to extended temp -40°C to +85°C (Optional)
- Available in ruggedization levels R1-R5


The Mustang is an 8- to 18-core Xeon® E5 server intended for military/defense/aerospace with greatest SWaP-Efficiency (SWaP-E) on the market due to its compact size and robust computing and I/O performance. Mustang is an ideal forwardly-deployed vehicle-mounted battlefield/airborne/shipboard server/router/switch/NAS that offers the greatest reliability in the smallest packaging. Mustang can also be used in industrial and commercial platforms since it has server-class performance, significant networking options, exceptional I/O capabilities and removable storage. It can be mounted virtually anywhere—including on telephone poles and powered by solar panels to form an outside surveillance server or Internet-of-Things (IoT) intelligent gateway. The S402-LC is fully compliant to MIL-STD-810G, MIL-STD-1275D, MIL-S-901D, DO-160D, MIL-STD-461F and has ingress protection up to IP66. This system may also be ordered from the factory with operating systems such as Windows® or Linux® pre-installed. 

General Description

The S402-LC "Mustang" is a third-generation, fan-less (conduction cooled) fully rugged, low cost Intel® Xeon® E5 server. It is designed to provide the highest level of server-class performance possible in a fully ruggedized, conduction-cooled system, operating up to -40°C to +85°C. Mustang simplifies local data processing tasks that require an ultra-fast, Xeon®-class server with vast amounts of high-speed, ECC-protected RAM and storage in one ultra-rugged chassis. S402-LC is ideal for the application that requires the horsepower of a high-performance server, but doesn’t require the expensive MIL-Circular high-speed interfaces. When equipped with the optional intelligent Ethernet Switch(es), Mustang becomes a compact server/router/switch/NAS subsystem that weighs under 15 pounds. S402-LC server is exemplified by its low price with options to suit any program requirement and budget.

The S402-LC supports up to 18 physical CPU cores with Hyper-Threading for a total of up to 36 logical cores, each operating up to 2.1GHz with ability to Turbo Boost up to 3.30GHz. To harvest this incredible CPU performance, the CPU is coupled with up to 256GB of DDR4 RAM organized in four banks. Each RAM bank consists of DDR4 DIMM arrays with Error Correcting Code (ECC). The ECC RAM provides 2-bit error detection with 1-bit correction and up to 2133 Mega Transfers per Second (MTS) between CPU and memory. 

I/O Subsystem

The I/O subsystem for the Mustang is designed to support an increasing level of high-speed I/O devices with modularity and security but at user-optioned price points. The base Mustang I/O sub-system supports four USB 2.0 ports, one service Gigabit Ethernet port, two Serial ports with RS-232/422/485 buffers, one console HD VGA/DVI port, and eight General Purpose I/O lines. Multiple I/O options are available.

Add-in modules include GMS SAM I/O™ (3) or a combination XMC/MXM/SAM I/O™ site. Additionally, the external drives can be converted to removable I/O as well via PCIe or USB 3.0 interfaces. 


The S402-LC includes HD-quality “console” video via VGA or DVI. For applications requiring high-performance video output, the S402-LC provides an optional MXM video module, utilizing the most powerful NVIDIA®-  and AMD®-based GPUs. AMD® Radeon™ embedded GPU E8860 provides up to 768 GFLOPS and NVIDIA™ embedded GPU M2000M provides up to 1.32 TFLOPS. Video output is accessed through an optional two SMPTE 292M SDI mini-BNC ports. 


Mustang also offers the most secure storage subsystem possible. It supports 16MB BIOS Flash with hardware-write protect and secure erase. The onboard fixed M.2 boot device (SATA or NVMe) and optional dual fixed 2.5” mSATA drive(s) provide optional hardware write-protect, Secure Erase and encryption functions. Removable storage can accommodate up to four SATA or NVMe SSDs.The S402-LC can optionally support FIPS-140-2 and FIPS-197 encryption standards for ultra-secure data storage. These data security functions, along with the Trusted Platform Module (TPM) 2.0 and Intel’s Trusted Execution Technology (TXT), make the Mustang the smallest and most secure system on the market. 

Technology Used

The Mustang utilizes the latest Intel® Xeon® Xeon E5-26xx v4 CPU, which is Intel’s most powerful processor series. Xeon® E5 processors are the gold standard for server-class computing and data management, boasting up to 18 cores/36 threads per socket with advanced thermal management to control heat under load. The Xeon® E5 supports 35MB of Smart Cache shared among the cores. The processor clocks up to 2.4GHz per core (14-core version) with Turbo Boosting up to 3.3GHz (18-core version).

On Mustang, the Xeon® E5 CPU also supports 256GB of DDR4 RAM with ECC. This Xeon® processor is considered the most powerful per-watt server class processor on the market, with many added power-saving features. It also boasts RAS features like PCIe hot-plug and CMCI, Intel Demand Based Switching, Intel® SpeedStep Technology, to name a few. Xeon® also contains security functions such as Intel’s second-generation Virtualization Technology VT-x, VT-x with Extended Page Tables (EPT), VT-D for Directed I/O and Trusted Execution Technology (TXT). 


The Mustang is equipped with GMS’s patent-pending RuggedCool technology, the industry’s most unique conduction cooling system promising system operation over -40°C to +85°C. RuggedCoolprovides the lowest thermal resistance to the case, keeping the CPU within temperature limits at full load, while still providing the highest shock specifications known in the industry. The S402-LC is a stand-alone, fan-less system and should be mounted directly to a metal cold plate surface that provides a reliable conductive thermal path. 

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