Conectores USB
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HB30C4AFPD - 4-Port USB 5Gbps Hub with 60W PD | StarTech
The StarTech HB30C4AFPD is a 4-port USB 3.2 Gen 1 hub with 5 Gbps SuperSpeed data throughput and 60W USB Power Delivery passthrough charging, housed in a compact enclosure with an integrated USB-C host cable terminating in four USB Type-A ports. A USB hub is a connectivity device that expands a single USB host port into multiple downstream ports, sitting within the broader hierarchy of USB peripherals that includes docking stations, port replicators, and USB controllers. Hubs buffer and repeat USB transaction traffic between the host and attached devices, and USB 3.x hubs route SuperSpeed and high-speed traffic on separate bus segments for parallel operation. Key features of the HB30C4AFPD include four downstream USB Type-A ports operating at USB 3.0 SuperSpeed 5 Gbps, 60W USB PD passthrough charging that lets the host laptop power and charge through the same USB-C connection, and a small-footprint portable design with integrated cable. The passthrough architecture means users do not sacrifice the laptop's only USB-C port when adding USB-A peripherals. Technically, the device operates as a USB 3.2 Gen 1 hub controller bridging the USB-C host receptacle interface to the four USB-A downstream ports. The 60W power delivery path is separated from the 5 Gbps data path, so charging continues at high wattage while data traffic flows simultaneously. This suits users connecting keyboards, mice, flash drives, external SSDs, and cameras. Typical applications include expanding connectivity on modern MacBook, Dell, and other ultrabook laptops whose USB-C-only chassis lack USB-A ports, field and mobile workstations, and office hot-desk setups. Design consideration: total available data bandwidth is shared across all four downstream ports at the 5 Gbps hub limit, so aggregate throughput of simultaneously active high-bandwidth devices is bounded by the single upstream link. This page synthesizes distributor pricing availability from Mouser, DigiKey, Newark, and Octopart, alternative StarTech hub variants, and practical usage guidance not consolidated in the manufacturer datasheet.
ST3300GU3B - 3-Port USB 3.0 Hub + Gigabit Ethernet | StarTech
The StarTech.com ST3300GU3B is a TAA-compliant portable 3-port USB 3.2 Gen 1 (USB 3.0) hub with an integrated Gigabit Ethernet adapter, housed in a compact aluminum enclosure with a built-in captive USB cable. It adds three external 5 Gbps USB-A ports plus one RJ45 Gigabit network port to a laptop or Ultrabook through a single upstream USB 3.2 Gen 1 connection. A USB hub is a bus-powered connectivity expander that fans out a single host USB port into multiple downstream ports, while an integrated USB-to-Ethernet bridge adds wired networking without a PCI card or a second cable. In the system hierarchy, the ST3300GU3B sits at the peripheral layer: host USB controller > hub controller > downstream USB devices and NIC. This combination is common for thin laptops such as the Microsoft Surface Pro 4, Surface Pro 3, Surface Book, and Dell XPS 13, which have limited built-in I/O. Key features include SuperSpeed USB 3.2 Gen 1 throughput of 5 Gbps, UASP (USB Attached SCSI Protocol) support for faster storage transfers than standard BOT (Bulk-Only Transport), a 10/100/1000 Mbps RJ45 Ethernet port, and a durable aluminum chassis that also aids heat dissipation. The built-in cable eliminates the most common failure point of portable hubs: the detachable host lead. Internally, the device combines a USB 3.0 hub controller with a Gigabit Ethernet bridge IC; the Ethernet MAC/PHY shares the single 5 Gbps upstream pipe with the three USB-A ports, so concurrent heavy traffic is aggregated at the host link. Bus power (USB 3.0 provides 900 mA per port at the host) is distributed across downstream ports, which is adequate for flash drives, keyboards, mice, and most bus-powered SSDs, but not for high-draw devices such as bus-powered hard disk drives under sustained load. Typical applications include ultrabook and Surface laptop docking, field-service notebooks needing wired Ethernet, and desk setups where a single USB port must serve storage, input devices, and network access. Design consideration: because the hub is fully bus-powered, avoid connecting multiple high-current devices simultaneously; for power-hungry peripherals choose a self-powered hub with an external adapter. This page synthesizes distributor availability data, practical usage notes, and compliance information (TAA, RoHS) not consolidated in the manufacturer datasheet. Pricing as of 2026-10-19 is not published in the retrieved data; request a quote for current pricing.
U3-7HUB - 7-Port USB 3.0 Bus-Powered Hub | Multicomp Pro
The Multicomp Pro U3-7HUB is a 7-port USB 3.0 hub in a bus-powered form factor, providing SuperSpeed USB 3.0 connectivity with data transfer rates of up to 5 Gbps per the USB 3.0 specification, and is RoHS compliant. A USB hub is a connectivity device that expands a single USB host port into multiple downstream ports, allowing several USB peripherals to share one host connection. In the device hierarchy, a hub sits between the USB host controller (inside a PC, laptop, or industrial computer) and downstream devices such as storage drives, sensors, and instruments. Hubs may be bus-powered (drawing all power from the host port, typically limited to 900 mA total on USB 3.0) or self-powered (using an external power adapter). The U3-7HUB is specified as bus powered, which simplifies deployment by eliminating an external power brick. Key features of the U3-7HUB include seven downstream USB 3.0 Type-A ports, USB 3.0 SuperSpeed signaling rated at 5 Gbps (backward compatible with USB 2.0 and USB 1.1 devices), and a bus-powered hub style that suits desk-based and light-duty industrial use. According to the Newark product listing, the part is catalogued under MULTICOMP PRO as a USB 3.0 7-port hub, and Kynix confirms RoHS compliance: Yes. Technically, a USB 3.0 hub of this class integrates a SuperSpeed hub controller IC that maintains simultaneous USB 3.0 and USB 2.0 data paths, enabling mixed-speed peripherals to coexist without slowing the faster links. Note that on a bus-powered 7-port hub, aggregate current available to all downstream devices is constrained by the host port budget, so high-draw devices such as spinning hard drives may require a powered variant. Typical applications include desktop peripheral expansion for test benches, connecting USB instruments and loggers to industrial PCs, lab workstation port multiplication, and office/kiosk USB device fan-out. Design and deployment consideration: verify the total current draw of all connected peripherals stays within the host port's 900 mA USB 3.0 budget; for high-power peripherals, select a self-powered hub instead. This page synthesizes distributor listings, datasheet references, drop-in device-level alternatives, and practical deployment notes not consolidated on the manufacturer datasheet.