Product image 11 / 6
#usb hub#4 port#usb splitter#startech
USB Hubs

StarTech 4 Port USB to Serial RS232 Adapter - Wall Mount - Din Rail - COM Port Retention - FTDI USB to DB9 RS232 Hub, TAA (ICUSB2324I)

Compact USB hub for expanding peripheral connectivity

Compact USB hub for expanding peripheral connectivity. Rated 4.7/5 stars. Now -22% off on Amazon. Expand your USB ports instantly with this plug-and-play hub.

4.7(228 reviews)-22% off
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// full review

Why this makes the shortlist

Port scarcity is a design choice by laptop makers. This hub is how you work around it. The StarTech 4 Port USB to makes a concrete case: 4.7-star average from 228 buyers, consistent across verified purchases. A 4.7-star rating held across 228 verified reviews is harder to fake than a single glowing testimonial.

What you're actually getting

This hub takes one USB connection and turns it into several, with the technical specs to justify the investment.

Built to withstand harsh environments, this 4 port USB to serial RS232 adapter has a rugged all-metal enclosure for added durability in industrial settings.

The specs that matter

What the product does in practice:

  • Built to withstand harsh environments, this 4 port USB to serial RS232 adapter has a rugged all-metal enclosure for added durability in industrial settings
  • For added convenience, this FTDI USB to DB9 RS232 hub features COM retention so COM port assignments are maintained during reboots
  • This DB9 serial converter is powered by an available USB port / cable so no external power adapter is required
  • This USB serial adapter has integrated wall mount brackets and included DIN Rail clips for versatile mounting options

Who this is for

If you've ever unplugged one device to plug in another, this hub ends that. The primary user is anyone on a laptop with fewer ports than peripherals — which, in 2025, is most people. Secondary users: desktop owners adding expansion without opening the case.

Before you buy

This hub is for data transfer only — if you're expecting power delivery to charge a laptop, verify the product specs carefully, as most slim hubs in this range don't include a power input port. Actual transfer speeds depend on the connected device and cable quality, not just the hub itself. The 4.7-star average is unusually high for this category — buyer satisfaction here is well above the norm.

Our verdict

A exceptional usb hub pick with 228 reviews already in. Currently showing -22% off list price — that brings the value proposition significantly higher than its spec sheet alone suggests. Straightforward recommendation: it does what it says, and the reviews confirm it.