# Choose Your Product and Manual

Use the product image and port count for a quick visual match, then verify the product model on the device label. **Four-port and seven-port describe the port count, not the product model**; use the `HBP_USB2_…` model/order code as the definitive identifier.

<div class="product-doc-grid">
  <article class="product-doc-card">
    <div class="product-doc-visual">
      <img src="../_static/product-4ch.png" alt="SmartUSBHub Pro 4-Port Programmable USB Hub">
      <span class="product-doc-channel">4 controllable ports</span>
    </div>
    <div class="product-doc-body">
      <h2>SmartUSBHub Pro 4-Port Programmable USB Hub</h2>
      <p class="product-doc-positioning">For development workbenches and compact automated-test fixtures</p>
      <p class="product-doc-code">Product models/order codes: HBP_USB2_4CH / HBP_USB2_4CH_PSU</p>
      <p>Transparent enclosure with four front USB-A downstream ports. Supports per-port VBUS and USB 2.0 data switching plus voltage/current measurement.</p>
      <div class="product-doc-actions">
        <a class="product-doc-action primary" href="usb2_4p/user_guide.html">Open User Manual</a>
        <a class="product-doc-action" href="usb2_4p/datasheet.html">View Technical Specifications</a>
      </div>
    </div>
  </article>

  <article class="product-doc-card">
    <div class="product-doc-visual">
      <img src="../_static/product-7ch.png" alt="SmartUSBHub Pro 7-Port Programmable USB Hub">
      <span class="product-doc-channel">7 controllable ports</span>
    </div>
    <div class="product-doc-body">
      <h2>SmartUSBHub Pro 7-Port Programmable USB Hub</h2>
      <p class="product-doc-positioning">For multi-device automated testing, batch flashing and remote labs</p>
      <p class="product-doc-code">Product models/order codes: HBP_USB2_7CH / HBP_USB2_7CH_ADV</p>
      <p>Metal enclosure with seven front USB-A downstream ports. Both models support per-port power and data switching; the ADV model adds voltage/current measurement.</p>
      <div class="product-doc-actions">
        <a class="product-doc-action primary" href="usb2_7p/user_guide.html">Open User Manual</a>
        <a class="product-doc-action" href="usb2_7p/datasheet.html">View Technical Specifications</a>
      </div>
    </div>
  </article>
</div>

## Product comparison

| Product name | Product model/order code | Ports | Power control | USB 2.0 data switching | Voltage/current measurement |
| --- | --- | ---: | --- | --- | --- |
| SmartUSBHub Pro 4-Port Programmable USB Hub | `HBP_USB2_4CH` / `HBP_USB2_4CH_PSU` | 4 | Yes | Yes | Yes |
| SmartUSBHub Pro 7-Port Programmable USB Hub | `HBP_USB2_7CH` / `HBP_USB2_7CH_ADV` | 7 | Yes | Yes | ADV model only |