RS1.542S18G Rugged 1.5U Server

Field tested, failsafe and long life performance in extreme conditions. As processing performance continues to improve, Crystal Group is dedicated to minimize the SWaP envelope of the RS1.542S18G. High-end computing performance in a 1.5U chassis with a depth of 18” (45.7 cm) fits most any rack space. Crystal Group’s RS1.542S18G 1.5U is a highly reliable rugged server, ideal for combat, sonar and electronic warfare applications on land, sea and air. This 1.5U server offers greater weapons system availability and a smaller integrated logistic support footprint with superior cooling and shock/vibe resistance.


  • Rugged 1.5U, rack mounted 18” depth, light weight aluminum construction – 25-30 lbs.
  • Mounting interfaces can be adapted to fit existing rail installations, removable ears
  • 1 TB of memory
  • Easy access CMOS battery drawer in front
  • 4x USB 3.0, VGA 2x Gigabit LAN, IPMI
  • Versatility with four to six removable 2.5” SSD bays
  • Expandable with four full height slots
  • Intel® Xeon® Scalable processors

Optional features:

  • Front I/O Serial Port
  • Fan Speed selection switch
  • Front access CMOS battery drawer

Please contact us to receive the reports, guides and drawings that best fit your requirements.


Environmental Standards
MIL-STD-810, Operational Temperature, Method 501/502 Procedure I/II

-15°C to +50°C, -40°C to +60°C with select processors

MIL-STD-810, Storage, Method 501, Procedure I/II

-55°C to +85°C

MIL-STD-810, Humidity, Method 507, Procedure II

240 hours with humidity kit

MIL-STD-810, Altitude, Method 500

12,500ft operation, 40,000ft transport

MIL-STD-167 Vibration with solid state drives + vibration kits
MIL-STD-810, Shock, Method 516, Procedures I/V

20g, 11msec–functional shock; 40g, 11msec crash hazard shock

MIL-S-901, Grade B, Class III
MIL-S-901, Grade A, Class III w/ solid state drives and shock kit
Electromagnetic Compatibility Standards
Some standards may require an internal kit
AC, FCC compliant
AC, MIL-STD-461, RE102, CE102 compliant
RTCA DO-160 Section 21, Category M
Form Factor
2.63" (6.68cm)
17.1" (43.43cm) EIA-310 Rack Compliant
18" (45.72cm)
25 - 30 lbs ( 11.34 - 13.61 kgs ) content dependent
Intel® CPU architecture options from Intel embedded long-life roadmap
Intel® Xeon® Scalable processors
Dual, Quad, Hexa, Octa, Deca, or Dodeca Core options (dependent on motherboard)
Expansion Slots
Four full height slots; combination is configuration dependent
External Bays
Option 1

Four removable 2.5″ SATA or SAS HDDs (15mm height)

Option 2

Six removable 2.5” SATA or SAS HDDs (9.5mm height)

Option 3 (can be combined with HDD option)

One CD/DVD/BD (R/W) (can be combined with HDD option)

32 GB DDR4 (motherboard dependent)

Four high speed, high volume fans

Mounting interfaces can be adapted to fit existing rail installations
Power Supply
700W 120/240VAC W/PFC, 115VAC 400Hz
System Board
Software Compatibility
Accepts Windows 10®, Windows Server 2012®, VMware®, Linux® or Windows Server 2016®
Export Compliance
ECCN: 5A992C - Classification is dependent on configuration and is subject to change. Please contact your Program Manager to receive the classification for your product.