PCIe Expansion Systems

One Stop Systems expansion products extend ultra-high-speed PCIe fabrics beyond the chassis to dynamically pool AI inference accelerators. Their composable architecture eliminates supply-chain-constrained hardware redundancies like duplicate CPUs and memory. By allocating high-throughput compute exactly where needed, they maximise compute density, lower system lifecycle costs and drive zero-latency edge inference.

Call Us

Email Us

Tell Us What You need

Gen5 4U Pro

4U short-depth PCIe 5.0 expansion chassis, supporting up to 8x double-wide 350W GPUs, or up to 16x single-wide x8 cards. With two PCIe 5.0 x16 uplinks, this PCIe expansion chassis connects to any existing server with 1Tb/s bandwidth.

– 20″ Depth
– 4x or 8x PCIe 5.0 x16 FHFL double-wide expansion slots
– 8x or 16x PCIe 5.0 x8 FHFL single-wide expansion slots
– Single or dual PCIe 5.0 server uplinks included
– System management & monitoring capabilities
– Automatic temperature controlled fan-speed
– MIL-STD-810H certified

Gen5 4U Pro MAX

4U short-depth PCIe 5.0 expansion chassis, supporting up to 8x double-wide 675W add-in-cards, like GPUs. With two PCIe 5.0 x16 uplinks, this PCIe expansion chassis connects to any existing server with 1Tb/s bandwidth.

– 20″ Depth
– 8x PCIe 5.0 x16 FHFL double-wide expansion slots
– Dual PCIe 5.0 server uplinks included
– System management & monitoring capabilities
– Automatic temperature controlled fan-speed
– MIL-STD-810H certified

Gen4 4UP

4U short-depth PCIe 4.0 expansion chassis, supporting up to 8x double-wide 350W GPUs, or up to 16x single-wide x8 cards. With two PCIe 4.0 x16 uplinks, this PCIe expansion chassis connects to any existing server with 512Gb/s bandwidth.

– 20″ Depth
– 4x or 8x PCIe 4.0 x16 FHFL double-wide expansion slots
– 8x or 16x PCIe 4.0 x8 FHFL single-wide expansion slots
– Single or dual PCIe 4.0 server uplinks included
– System management & monitoring capabilities
– Automatic temperature controlled fan-speed
– MIL-STD-810H certified

PCIe Cable Adapters

Gen6 x16 Cable Adapter

PCIe 6.0 x16 Host Interface Board. Supports a transparent path from a host’s root coplex to multiple endpoints, providing RDMA connectivity to NVMe drives, GPUs, FPGAs and more.

– PCIe 6.0 x16 (1.0TB/s bandwidth)
– Supports CopperLink cables up to 3-meters
– low-profile, half-length form factor

Gen5 x16 Cable Adapter (QSFP-DD ports)

PCIe 5.0 x16 Host Interface Board. Supports a transparent path from a host’s root coplex to multiple endpoints.

– PCIe 5.0 x16 (512Gb/s bandwidth)
– Supports dual QSFP-DD cables
– low-profile, half-length form factor

Gen5 x16 Cable Adapter (CDFP ports)

PCIe 5.0 x16 Host Interface Board. Supports a transparent path from a host’s root coplex to multiple endpoints.

– PCIe 5.0 x16 (512Gb/s bandwidth)
– Supports dual CDFP cables
– low-profile, half-length form factor

Gen4 x16 Cable Adapter

PCIe 4.0 x16 Host Interface Board. Supports a transparent path from a host’s root coplex to multiple endpoints.

– PCIe 4.0 x16 (256Gb/s bandwidth)
– Supports quad miniSAS cables with SFF-8644 connectors
– low-profile, half-length form factor

Gen3 x16 Cable Adapter

PCIe 3.0 x16 Host Interface Board. Supports a transparent path from a host’s root coplex to multiple endpoints.

– PCIe 3.0 x16 (128Gb/s bandwidth)
– Supports quad miniSAS cables with SFF-8644 connectors
– low-profile, half-length form factor

PCIe Expansion Backplanes

Gen5 Expansion Backpane (5x PCIe x16 slots)

PCIe expansion backplane with 5x PCIe 5.0 x16 slots. Supports up to 4x double-wide x16 add-in-cards, like GPUs.

– Five downstream PCIe 5.0 x16 expansion slots
– One upstream PCIe 5.0 x16 uplink connection
– Optional bifurcation to support two PCIe 5.0 x16 uplinks

Gen5 Expansion Backpane (8x PCIe x8 slots)

PCIe expansion backplane with 8x PCIe 5.0 x8 slots. Supports up to 8x single-wide x8 add-in-cards.

– Eight downstream PCIe 5.0 x8 expansion slots
– One upstream PCIe 5.0 x16 uplink connection

Gen4 Expansion Backpane (5x PCIe x16 slots)

PCIe expansion backplane with 5x PCIe 4.0 x16 slots. Supports up to 4x double-wide x16 add-in-cards, like GPUs.

– Five downstream PCIe 4.0 x16 expansion slots
– One upstream PCIe 4.0 x16 uplink connection
– Optional bifurcation to support two PCIe 4.0 x16 uplinks

Gen4 Expansion Backpane (8x PCIe x8 slots)

PCIe expansion backplane with 8x PCIe 4.0 x8 slots. Supports up to 8x single-wide x8 add-in-cards.

– Eight downstream PCIe 4.0 x8 expansion slots
– One upstream PCIe 4.0 x16 uplink connection

Gen3 Expansion Backpane (5x PCIe x16 slots)

PCIe expansion backplane with 5x PCIe 3.0 x16 slots. Supports up to 4x double-wide x16 add-in-cards, like GPUs.

– Five downstream PCIe 3.0 x16 expansion slots
– One upstream PCIe 3.0 x16 uplink connection
– Optional bifurcation to support two PCIe 3.0 x16 uplinks

Gen3 Expansion Backpane (8x PCIe x8 slots)

PCIe expansion backplane with 8x PCIe 3.0 x8 slots. Supports up to 8x single-wide x8 add-in-cards.

– Eight downstream PCIe 3.0 x8 expansion slots
– One upstream PCIe 3.0 x16 uplink connection

PCIe Expansion Cables

Gen5 x8 QSFP-DD cables

PCIe 5.0 x8 cables with QSFP-DD connectors. Up to 3-metres.

miniSAS x4 cables

PCIe 3.0 and PCIe 4.0 compatable copper cables with SFF-8644 connectors. Up to 3-metres.

miniSAS x4 cables (Optical)

PCIe 3.0 and PCIe 4.0 compatable active optical cables with SFF-8644 connectors. Up to 100-metres.