PXH830 PCIe NTB Host Adapter

PCI Express Gen3 x16 NTB Host Adapter

The PXH830 Gen3 PCI Express NTB Host Adapter is our high performance clustering product. Based on Broadcom® Gen3 PCI Express bridging architecture, the PXH830 NTB host adapter includes advanced features for non-transparent bridging (NTB) and clock isolation. The PXH830 card have a strandard Quad SFF-8644 connector and uses MiniSAS-HD cables. The adapter card supports the full Dolphin eXpressWare software stack.

  • One x16 PCIe edge port
  • Four x4 PCIe cable ports
  • PCIe 3.0 or MiniSAS-HD cables
  • 0.54 microsecond latency
  • Low Profile Design
  • Quad SFF-8644 Connectors
  • Non Transparent Bridging
  • 128 Gigabit/s performance
  • PIO and DMA RDMA
  • Full Dolphin Software Stack

Product Data

The PXH830 Gen3 PCI Express NTB Host Adapter is our high performance cabled interface to external processor subsystems. Based on Avago® Gen3 PCI Express bridging architecture, the PXH830 host adapter includes advanced features for non-transparent bridging (NTB) and clock isolation. The PXH830 card have a strandard Quad SFF-8644 connector and uses standard MiniSAS-HD cables.

For high performance application developers, the PXH830 host adapter combines 128 Gbit/s performance with an application to application latency starting at 0.54 microseconds. Inter-processor communication benefits from the high throughput and low latency. Using the latest SmartIO technology software from Dolphin, applications can now access remote PCIe devices as if they was attached to the local system.

The PXH830 performs both Remote Direct Memory Access (RDMA) and Programmed IO (PIO) transfers, effectively supporting both large and small data packets. RDMA transfers result in efficient larger packet transfers and processor off-load exceeding 11 Gigabytes pr second. PIO transfers optimize small packet transfers at the lowest latency. The combination of RDMA and PIO creates a highly potent data transfer system.

Dolphin’s software suite takes advantage of PCI Express’ RDMA and PIO data transfer scheme. Delivering a complete deployment environment for customized and standardized applications. The suite includes a Shared-Memory Cluster Interconnect (SISCI) API as well as a TCP/IP driver and SuperSockets software. The SISCI API is a robust and powerful shared memory programming environment.

The optimized TCP/IP driver and SuperSockets™ software remove traditional networking bottlenecks, allowing standard IP and sockets applications to take advantage of the high performance PCI Express interconnect without modification. The overall framework is designed for rapid development of inter-processor communication systems.

The PXH830 is carefully designed for maximum cable length and supports copper cables up to 9 meters at full PCI Express Gen3 speed. Fiber optics extends this distance to 100 meters.

The PXH830 card comes with a full license to the Dolphin eXpressWare software. The PXH832 Gen3 Adapter card does not include any software license and is well suited for high performance Transparent IO Expansion applications.


  • PCI Express® 3.0 compliant - 8.0 Gbps per lane
  • Link compliant with Gen1 and Gen2 PCI Express
  • Quad SFF-8644 Connectors
  • PCIe 3.0 cables or MiniSAS-HD cables
  • Four x4 Gen3 PCI Express cable ports that can be configured as:
    • One - x16 PCI Express port
    • Two - x8 PCI Express ports
  • Two NTB ports max
  • RDMA support through PIO and DMA
  • Copper and fiber-optic cable connectors
  • Clock isolation support
  • Non-transparent bridging to cabled PCI Express systems
  • Low profile PCI Express form factor
  • EEPROM for custom system configuration
  • Link status LEDs through face plate


Ixh610 Latency

IXH610 Throughput

Feature Description
Link Speeds 32 Gbit/s per port, total 128 Gbit/s
Application Performance 0.54 microsecond latency (application to application)
< 130 nanoseconds cut through latency port to port
Active Components Broadcom / PLX / Avago® Gen3 PCI Express Switch with DMA
PCI Express® Base Specification 3.0
Topologies Point to point or 3 node Mesh Topology
Cable Connections Quad SFF-8644 connectors.
MiniSAS-HD copper copper cables, 0.5 - 9 meters
PCIe 3.0 cables
Fiber optic cable (AOC) support, up to 100 meters
Power Consumption

12 Volt : 14 Watt Max, (typical, 10 Watt without AOC )
+3.3 Volt : Max 3.3 Watt
+3.3 VAUX : Max 1 Watt

Cable Port Power supply

+3.3 Volt +/- 5%, 0.6 A pr Cable Port

Mechanical Dimensions Low profile, Half Lenght - 68.90 mm (2.731 inches) x 167.65 mm (6.600 inches)
Operating Environment Operating Temperature: 0°C - 55°C (32°F - 131°F)
Operating Temperature with AOC: 0°C - 45°C (32°F - 113°F)
Air Flow: 150 LFM

Operating Temperature: 0°C - 50°C (32°F - 122°F)
Air Flow: ~0 LFM

Relative Humidity: 5% - 95% (non- condensing)
Storage Environment Storage Temperature: -40°C - 70°C (-40°F - 158°F)
Relative Humidity 95% (non- condensing) at 35°C
Software SuperSockets™ Berkley Sockets API
Microsoft WinSock2/LSP support
Advanced TCP/IP driver
PCIe bracket Full height plate mounted
Half height plate included
Configuration DIP-switch
NTB / Long cable / short cable / safe boot
Regulatory CE Mark
FCC Class A
RoHS compliant
UL94V-0 compliant
Operating Systems Windows

PXH830 - NTB Host + Dolphin eXpressWare software license

PXH832 - Transparent Host + Target functionality