Description
Basic Function & Use
This adaptor connects a PCIe x16 card (like a GPU) via a PCIe x1 motherboard slot using a USB 3.0 cable as an extender. Often paired with a SATA or 6‑pin power input to supply GPU voltage and stability
⚙️ Electrical & Data Specs
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Interface Compatibility: PCI‑Express 1.0/2.0; supports x1, x4, x8, x16 on slot side and x1 host-side
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Data Rate: Max ~5 Gbps (USB 3.0 bandwidth), roughly equal to PCIe 1.0 x1 (≈250 MB/s)
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Power Delivery: Supported via SATA 15‑pin or 6‑pin PCIe input on riser board; some even include Molex or dual power options
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Capacitors: Typically equipped with 4 solid-state capacitors to ensure voltage stability under load
📏 Physical Characteristics
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USB Cable Length: Usually ~55–60 cm (spec extensions up to ~3 m possible, but greater chance of signal integrity issues)
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Riser Board Dimensions: ~130 × 43 × 15 mm (e.g., DELock design)
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Connector Surfaces: Gold-plated contacts for improved durability and signal conduction
🛡️ Compliance & Compatibility
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USB 3.0 Standard: Uses SuperSpeed protocol @5 Gbps with standard Type‑A plugs
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PCIe Standard: Backward-compatible with PCIe 1.x and 2.x links; behaves electrically as a PCIe 1.0 x1 link
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Plug-and-Play: No drivers required—simply insert card and power it
📊 Summary Specification Table
| Feature | Typical Value |
|---|---|
| Host Slot Support | PCIe x1 (also compatible with x4/x8/x16 slots) |
| Card Interface Supplied | PCIe x16 female |
| Link Bandwidth | ~250 MB/s (PCIe 1.0 x1 / USB 3.0) |
| USB Cable | ~55–60 cm, SuperSpeed Type A |
| Power Connector | SATA 15‑pin or 6‑pin PCIe |
| Board Size | ~130 × 43 × 15 mm |
| Capacitors | 4 solid-state for stable power |
| Typical Use Case | GPU mining rigs, external GPUs, testing benches |
| Setup | Plug‑and‑play, no drivers required |
📌 Considerations & Tips
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This type of riser provides bandwidth similar to PCIe 1.0 x1, which may bottleneck high-speed GPUs—acceptable for crypto mining or lower-demand tasks, but not ideal for gaming
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Stick with the supplied ~60 cm USB cable—longer aftermarket cables may compromise signal integrity and cause errors
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Ensure your PC case or mining frame has proper cable strain relief to avoid loosening connectors during use.
✅ Final Word
These USB 3.0 PCIe risers are cost-effective, simple, and widely used in GPU setups—offering ease of installation with sufficient bandwidth for many tasks. Just be sure to power the board correctly and use the specified cable length for best results.
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