A PCIe Gen4 fabric backplane (Tier-1 US PCIe switch silicon inside) that lets you route any endpoint — accelerators, SSDs, NICs — to any host. The foundation of composable, disaggregated architectures.
PCIe Gen4 fabric switching that lets compute, accelerators, storage, and networking scale independently. Reassign endpoints on demand. Consolidate hardware across workloads.
The Datafabrix Gen4 Fabric Backplane is a PCIe Gen4 non-blocking switch that supports flexible endpoint-to-host binding. Deploy it as the composability layer under a rack of servers.
The block diagram shows the PCIe Fabric Expansion Platform as a "PCIe any-to-any" switch. Multiple host servers cable-attach into the fabric via PCIe HBAs. Behind the fabric sits a mix of endpoints — NVMe, GPU, DPU, FPGA, custom PCIe cards — that any host can claim through the control plane. Hot-plug, live-migrate, and multi-host zoning are all native operations. The fabric is the composable data plane that turns fixed servers into a fluid resource pool.
The connection diagram maps a composable rack. Each participating host runs a short MCIO cable to the DF-S02 chassis. External endpoint chassis (JBOF, GPU box, DPU shelf) uplink to the same fabric. A dedicated management network reaches the composability control plane for on-the-fly endpoint reassignment. A+B power feeds keep the fabric hot during maintenance. Use this diagram to plan host-to-endpoint ratio, cable topology, and control-plane latency.
| Interface | Details |
|---|---|
| Host lanes | Up to 4× PCIe Gen4 x16 upstream |
| Endpoints | PCIe Gen4 x4/x8/x16 downstream |
| Composability | Software-defined endpoint-to-host binding |
| Management | Redfish · SNMP · DCIM-native |
| Hot-plug | Per-slot supported |
The PCIe Fabric Expansion Platform decouples compute from accelerators, storage, and networking. Instead of over-provisioning every server with worst-case hardware, you pool endpoints behind the Gen4 fabric and bind them to hosts on demand.
The Datafabrix Gen4 Fabric Backplane switches at line-rate PCIe Gen4 — up to 16 GT/s per lane, non-blocking across all ports. Endpoint binding is enforced by software policy, letting orchestrators reassign resources between workloads.
This is the fabric under composable infrastructure. Whether you're running heterogeneous training jobs across a shared GPU pool, or dynamically scaling storage under a database tier, the fabric lets each workload get exactly the hardware it needs.
Move GPUs into training jobs on demand; return them to inference between runs.
Give tenants right-sized hardware without stranded capacity.
Reconfigure hardware per experiment, per user, per week.
| Category | Specification |
|---|---|
| Fabric | PCIe Gen4 non-blocking switch |
| Upstream | Up to 4× PCIe Gen4 x16 |
| Downstream | Configurable x4/x8/x16 endpoints |
| Composability | Software-defined binding |
| Management | Redfish · DCIM-native |
Where it fits in the rack, how it connects, and what you get after installation.
Rack-scale PCIe Gen4 fabric backplane (Tier-1 US PCIe switch silicon inside) that lets any endpoint attach to any host on demand. The solution slots into a standard 19-inch rack alongside your existing servers, storage, and network fabric — no re-architecture required.
Target deployments: Composable rack infrastructure where accelerators / storage / NICs must be re-assignable.
Slide the DF-S02 chassis into a standard 19-inch rack slot. Rail kit included. Cable to your PDU and management network.
Install the Datafabrix PCIe host adapter in your existing server. Connect via PCIe cable to the DF-S02 backplane uplink.
Insert NVMe drives, GPUs, or accelerators into hot-plug slots. Each device trains and appears as a native PCIe endpoint on the host.
Optional: connect to Datafabrix DCIM for fleet-wide visibility. Add more chassis for horizontal scale — no host reconfiguration.
Direct rack integration alongside your existing production servers. Turnkey in a single deployment window.
Scale from a single chassis pilot to full-rack production with zero architectural change.
OEM-ready configuration for organizations building their own branded infrastructure products.
Engineering pilots, reference designs, and OEM co-design programs — we work with your team from concept to production.