440 GB 3U VPX Rad-Tolerant SSDR

On-orbit data storage, commercially available

Preserve up to 440 GB of data in radioactive environments

The RH3440 is the world’s first commercially available, high-density solid-state data recorder (SSDR) in a compact 3U form factor. Precision-engineered and purpose-built to withstand harsh, radiation-intense environments, including space. The RH3440 answers industry needs for reliable, SWaP-optimized storage solutions and offers long-term data integrity with proprietary defect mitigation and the most powerful error correction code (ECC) available.

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FeaturesSpecificationsApplications
Features
  • 440 GB large geometry, industrial-grade SLC NAND flash memory
  • All components radiation tolerant by design (except NAND) at > 100 krad
  • Proprietary horizontal Reed-Solomon algorithm for error correction
  • Designed for fault tolerance with multiple failed NAND flash devices
  • VPX compatible, VITA 48.2 compliant, P2 unpopulated
  • NAND screened to NASA EEE-INST-002
  • Ruggedized construction and assembly

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Specifications
  • SRIO interface running at 3.125 Gbit/s
  • 4-lane writes 1160 MB/s, reads 1040 MB/s
  • 1-lane writes 250 MB/s, reads 225 MB/s

Radiation Tolerance

  • Total ionizing dose (TID) > 100 krad (all components except NAND)
  • SLC NAND TID > 25 krad

RTG-4-Based NAND Processor and Controller

  • Configuration upsets immunity to LET > 103 MeV.cm2/mg
  • Single-event latch-up (SEL) immunity to LET > 103 MeV.cm²/mg
  • Registers SEU rate < 10–12 errors/bit-day (GEO solar min)
  • Registers SEU rate < 10–12 errors/bit-day (GEO solar min)
  • Single-event transient (SET) upset rate < 10–8 errors/bit-day (GEO solar min)
  • TID > 100 krad

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Applications
  • LEO satellites
  • Nuclear industry
  • Medical industry
  • High-altitude aircraft
  • Airborne weapons
  • Mission-critical ground computing subsystems
  • Missile launch vehicles
  • Scientific missions

CASE STUDY

Mercury Supplies Solid-State Data Recorders For NASA'S JPL Emit Science Mission

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WHITE PAPER

Protecting Satellite Imagery From Radiation

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PRESS RELEASE

Mercury’s solid-state data recorders headed to International Space Station

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