Nallatech 250-U2 – Proxy In-Line Accelerator (PIA)

Fully-programmable near-storage accelerator conforming to the U.2 form factor directly coupled to local DDR4 memory

The 250-U2 is available as a fully-programmable device for customers preferring to develop and deploy their own application codes.

U.2 Form Factor



  • Xilinx Kintex UltraScale+ FPGA
  • U.2 Form Factor
  • Fully Programmable
  • In-Line Acceleration


This energy-efficient, flexible compute node is intended to be deployed within conventional U.2 NVMe storage arrays (approximately 1:8 ratio) allowing FPGA-accelerated instances of:

  • Erasure Coding & Deduplication
  • Compression, Encryption & Hashing
  • String/Image Search & Database Sort/Join/Filter
250-U2 Datasheet (255KB)

250-U2 Proxy In-Line Accelerator (PIA)

Form Factor
» U.2 compliant 2.5” Drive Form Factor
» Height: 15mm

Host Interface
» U.2 Connector
» Compliant to SFF-8639
» Actual performance is host computer chipset & operating

» Xilinx Kintex UltraScale+ FFVA1156 package
» Default configuration: KU15P
» Core speed grade -2
» Industrial temperature grade
» Contact Nallatech for other FPGA options

» One bank of DDR4 SDRAM x 72 bits
» 8GB per bank (16GB version also available)
» Transfer Rate: 2400 MT/s

Application Development
» Vivado Design Suite HLx Editions: HDL and C/C++ with HLS

» Hot swapping tolerant
» On-card power derived from U.2 supplies
» Power dissipation is application dependent
» Typical FPGA power consumption 20W
» Card designed to deliver up to 25W power consumption

» Manufactured to ISO9001:2008 IPC JSTD-001 -Class III
» RoHS compliant

Datacenter Deployment
» On-board NVMe compliant SMBUs controller (Spec. 1.0a)
» Field flash update via software or SMBus
» SMBus FPGA flash control: anti-bricking, fallback & multiboot
» SMBus access to unique board data and temperature sensor

Power Supply Monitoring & Reporting
» Voltage monitoring
» Temperature monitoring
» Fault condition reporting to FPGA

Back Panel Features
» User LEDs accessible
» Reset switch to restore factory settings

Development Features (Behind Back Panel)
» JTAG connector for access to the FPGA, flash & debug tools
» GPIO connector
» MicroSD connector

» U.2 drive case optimized for cooling with passive heatsink

» Cooling: Air convection
» Operating temperature: 5°C to 35°C

» 250-U2 FPGA card
» Built-In-Self-Test (BIST)
» 1-year access to online support lounge
» 1-year hardware warranty

Customization: Technical specifications (e.g. FPGA type, size, exter- nal memory capacity etc.) can be modified to meet the exact needs of commercial customer applications as off-the-shelf product available to the general market.

View All Nallatech FPGA Cards

250-U2 Datasheet (255KB)

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