OmniBus™ PCIe 5.0 · SFF-8614 · Gen 5.0 Host Adapter
One fabric, every node
32.0 GT/s per lane. Sub-microsecond host-to-host latency. The OmniBus™ PCIe 5.0 NTB Adapter turns cabled PCIe into a clustering fabric — from a single hot-add to a 60-node switch — so servers, GPUs, and storage address each other as local resources and AI runs against data in place rather than across a network.
Host NTB adapter · passive heatsink
OmniBus™ features
PCIe 5.0 performance, cabled like a network, addressed like memory.
Host-to-host latency
Cabled PCIe that behaves like a backplane, not a network.
500ns application-to-application latency, with chip latency near 100ns.
Fast enough that clustering and hot-add applications treat remote PCIe devices as local ones — application developers get PCIe 5.0 bandwidth without the overhead of a conventional network fabric.
Configurations
The same adapter scales from one cable to a 60-node matrix.
Every topology below runs on the same OmniBus™ hardware and software suite — no separate architecture for scale.
OmniBus™ software
A full clustering suite, licensed with every card.
SISCI API — shared-memory programming environment for PCIe.
Omni Sockets — Berkeley Sockets–compatible accelerator, standard TCP/IP drivers.
SmartIO — access to remote PCIe devices as if they were local.
Board Management — configuration and health visibility across the fabric.
Compatible with Linux and Windows. PIO and DMA transfer schemes are handled automatically — PIO minimizes latency on small packets, DMA moves large packets with minimal CPU utilization.
Specifications
The numbers that matter for a deployment decision.
- PCI Express
- Base Spec 5.0 · Cabling Spec 5.0
- Max link speeds
- 1,024 Gb/s (32-line) · 512 Gb/s (16-line)
- App-to-app latency
- ~500–600ns (system dependent)
- Boards per system
- Up to 4 (system dependent)
- Usage mode
- Non-transparent bridging (NTB)
- Active components
- Microchip Switchtec® PCIe 5.0 PFX
- Cable connections
- SFF-8614, quad x4, copper up to 3m
- Topologies
- 2-node direct · 3–5 node direct · multi-node switch
- Operating systems
- Windows, Linux
- Form factor
- Low profile, half length (167.65 × 68.90mm)
- Operating temp
- 0°C – 45°C
- Typical power
- 12V: 2.5A (copper cable)
The cable is the cluster.
OmniBus™ turns PCIe 5.0 into a composable fabric — hot-add today, a 60-node matrix tomorrow, without a second adapter or a second architecture.
OmniBus™ PCIe 5.0 · SFF-8614 NTB Adapter
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