Adafruit CH334F Mini 4-Port USB Hub Breakout

SKU: ADA5997 Brand: Adafruit

Sometimes you've got something with USB host, like a embedded linux board, and you want to connect more than one thing. Or maybe you want to turn...

$10.40 AUD, inc GST

$9.45 AUD, exc GST

Available with a lead time
Expect dispatch between May 07 and May 12

Quantity Discounts:

10+ $9.07 (exc GST)
25+ $8.79 (exc GST)

Sometimes you've got something with USB host, like a embedded linux board, and you want to connect more than one thing. Or maybe you want to turn something like a keyboard into a multi-device USB peripheral. The Adafruit CH334F Mini 4-Port USB Hub Breakout will do that for you! it features a CH334F USB 2.1 hub chip which converts one high-speed port into four.

Most folks who use a USB hub get one that comes in an enclosure with connectors or cables included. But, those hubs are going to be bulky - they're meant for external use. This breakout board is designed to be compact, so it can easily be embedded into an enclosure or existing device. There's four mounting holes but other than that, Adafruit tried to keep it as compact as possible.

Part of how Adafruit kept it small is not including downstream ports! The breakout has either 0.1" header or USB C for the upstream, and then four 4-pin ports for peripheral connections. Adafruit expect folks to solder directly to the pads or use Adafruit's 'simple' USB-breakout cables.

You get one fully assembled/tested boards and some extra header if you happen to want to plug it into a breadboard. Other than that, just keep in mind there's no USB ports for the 4 downstreams - if you need those take a look at some of these other data storage options.

Technical Details

CH334 Specifications:

4-port USB HUB, providing 4 USB 2.0 downstream ports, backward compatible with USB 1.1 protocol specification
Support high performance MTT mode, providing independent TT for each port to achieve full bandwidth concurrent transmission, with 4 times the total bandwidth of STT
Support port status LED indicators
Provides crystal oscillator with built-in capacitor, supports external 12MHz input, and built-in PLL provides 480MHz clock for USB PHY
Built-in 1.5KO pull-up resistor on the upstream port, built-in pull-down resistor on the downstream port required for USB Host, streamlined periphery
USB pins have 6KV enhanced ESD performance, Class 3A

Product Dimensions: 31.6mm x 20.4mm x 4.8mm / 1.2" x 0.8" x 0.2"

Product Weight: 2.9g / 0.1oz

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