U3-7HUB - 7-Port USB 3.0 Bus-Powered Hub | Multicomp Pro
料号： U3-7HUB ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
U3-7HUB 概述
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.
直接替换替代料： U3-7HUB ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
GM-HU37
✅ 直接替换📋 参考替代料（不在目录中）
UH7000C
✅ 直接替换📋 参考替代料（不在目录中）
U3-7HUB 最大额定值与电气特性
| Number of Ports | 7 Ports |
| USB Standard | USB 3.0 |
| Data Transfer Rate | Up to 5 Gbps (SuperSpeed) |
| Hub Style | Bus Powered |
| RoHS Compliant | Yes |
| Product Range | USB 3.0 Hub, 7-Port |
U3-7HUB standard 引脚配置指南
U3-7HUB（standard 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： U3-7HUB.
请参阅 数据手册 以查看完整引脚配置。
典型应用
U3-7HUB 适用于 6 应用s: Test Bench Peripheral Expansion, Industrial PC Instrument Connectivity, Office and Kiosk USB Device Fan-Out, Rapid-Flash Programming Station, Portable Workstation Expansion, Data Acquisition and Logging Racks.
Test Bench Peripheral Expansion
On electronics test benches, engineers routinely juggle USB instruments: logic analyzers, USB-to-UART bridges, programmers, and reference-design dongles. The U3-7HUB consolidates these onto one host connection with 7 USB 3.0 ports at up to 5 Gbps, keeping desktop cabling tidy and letting a single laptop or PC control the entire bench. Its bus-powered design per the Newark listing means no wall adapter, reducing clutter and single-point power failures on the bench. Because logic analyzers and programmers are low-current devices, they fit comfortably within the host port's USB 3.0 budget of 900 mA at 5 V. One caution: avoid hanging multiple bus-powered storage devices on the same hub during long capture sessions, as aggregate current may exceed the budget and cause disconnects.
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Industrial PC Instrument Connectivity
Industrial PCs and panel-mounted computers often expose only one or two front USB ports, yet machine-vision cameras, barcode scanners, USB data loggers, and HMI dongles all need connections. The U3-7HUB fans one USB 3.0 port out to 7 SuperSpeed ports, providing the bandwidth that machine-vision and streaming-class devices require at 5 Gbps. Its RoHS compliance (per Kynix: Yes) supports deployment in EU-market industrial equipment. Because the hub is bus powered, it is best paired with an industrial PC whose ports deliver stable current, and its use should be restricted to low-draw peripherals. For DIN-rail cabinet installations where a metal chassis and external 12 V supply are acceptable, the Gearmo GM-HU37 is the recommended powered variant.
推荐
Office and Kiosk USB Device Fan-Out
In office and self-service kiosk environments, a single host computer frequently must serve keyboards, mice, printers, card readers, cameras, and signature pads simultaneously. The U3-7HUB provides seven USB 3.0 downstream ports on one host connection, and USB 3.0 hubs keep separate USB 2.0 and SuperSpeed data paths, so slower HID devices do not steal bandwidth from high-speed peripherals. Its bus-powered style eliminates a power adapter - important in kiosks where outlets are scarce - and the 5 Gbps SuperSpeed link accommodates check-in cameras and document scanners. Designers should total the current draw of all kiosk peripherals against the 900 mA host budget and move any charging function (e.g., user phone charging) to a powered hub such as the Kensington UH7000C.
推荐
Rapid-Flash Programming Station
Production flash-programming stations program multiple MCU boards in parallel, and each programming pod (J-Link, ST-LINK, USB Blaster class tools) occupies one USB port. The U3-7HUB's 7 ports let one host PC drive up to seven programming pods at once, dramatically improving throughput for panel-level or batch programming. USB 3.0 SuperSpeed bandwidth of 5 Gbps is far beyond what programming pods consume, and the separate USB 2.0 path keeps low-speed pods isolated. Since programming pods are bus-powered low-current devices (typically under 100 mA each), the U3-7HUB's bus-powered topology handles a full bank within the 900 mA host budget. Verify per-pod current in the pod datasheet and derate if target boards are also bus powered through the pods.
推荐
Portable Workstation Expansion
Field engineers and mobile technicians carrying compact laptops or single-board computers benefit from the U3-7HUB as a travel-friendly port multiplier: one USB 3.0 host connection expands to 7 ports for portable SSDs, USB instruments, cameras, and dongles. The bus-powered design is decisive here - there is no adapter to forget, lose, or fail in the field, and the hub works from any host port. USB 3.0's 5 Gbps SuperSpeed link supports portable NVMe-to-USB SSD enclosures at full practical speed. The constraint to respect is total bus current: connect at most one bus-powered spinning drive, or prefer SSDs which draw well under the 900 mA budget, keeping all seven ports usable during a single mobile session.
推荐
Data Acquisition and Logging Racks
Distributed data-acquisition setups - environmental monitoring, energy metering, and lab logging - commonly use USB sensors, RS-485/USB converters, and USB storage for local buffering. The U3-7HUB aggregates up to seven such devices onto one host, with the USB 3.0 5 Gbps link providing ample headroom for streaming multi-channel data while the hub's independent USB 2.0 path serves legacy converters without bandwidth contention. Its RoHS compliance (Kynix: Yes) suits long-life monitoring deployments subject to EU substance rules. Because logging nodes must run unattended, the bus-powered topology both simplifies wiring and introduces a shared-current failure mode: oversubscribing the 900 mA budget causes random disconnects, so compute total sensor current before deployment or step up to the Gearmo GM-HU37 powered hub.
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推荐产品汇总
工程参考数据： U3-7HUB ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | GM-HU37 | UH7000C |
|---|---|---|---|
| Brand | Multicomp Pro | Gearmo | Kensington |
| Package | Bus-powered desktop USB hub enclosure | DIN-rail mountable metal chassis | Desktop enclosure with charging |
| Number of Ports | 7 Ports | 7 Ports | 7 Ports |
| USB Standard | USB 3.0 (up to 5 Gbps) | USB 3.0 (up to 5 Gbps) | USB 3.0 (up to 5 Gbps) |
| Power Topology | Bus Powered | Powered (3.6 W, external supply) | Powered with charging |
| Downstream Current Capability | Limited by host port (approx. 900 mA USB 3.0 budget) | Full per-port current from external supply | Full per-port current plus charging |
关键差异点
- No external power supply required （对比 GM-HU37)
- Lower deployment cost and complexity （对比 UH7000C)
- Trade-off: constrained downstream current （对比 GM-HU37)
设计说明
The U3-7HUB is bus powered, meaning all seven downstream ports share the upstream USB 3.0 host port budget of approximately 900 mA at 5 V (4.5 W). Before deployment, sum the idle and peak current of every attached peripheral from their datasheets. If the total approaches or exceeds 900 mA, devices will intermittently disconnect or fail to enumerate. Low-draw devices (HIDs, programmers, USB-to-serial bridges, SSDs) are fine; multiple spinning drives or anything with a charging function is not - move those to a powered hub such as the Gearmo GM-HU37.
USB 3.0 hubs maintain separate SuperSpeed and USB 2.0 data paths, but the hub itself is a single point of failure for all seven ports. In unattended installations (logging racks, kiosks), a hub fault removes every peripheral at once; design the system so a hub outage is detectable (heartbeat polling on each port) and place only non-safety-critical devices on the hub. Also verify host-controller driver quality - some embedded USB 3.0 host stacks have poor hub enumeration robustness; test the exact host plus hub combination before volume rollout.
USB 3.0 SuperSpeed links at 5 Gbps are sensitive to cable quality and length. Use short, certified USB 3.0 cables for the upstream connection and for any long downstream runs, and avoid routing the hub's cables parallel to switching power supplies, motor drives, or fluorescent ballasts that inject broadband noise. In electrically noisy industrial cabinets, prefer shielded USB 3.0 cables and the metal-chassis GM-HU37 variant, which provides better shield continuity than typical plastic desktop hubs.
合规信息
RoHS compliance (Yes) confirmed by Kynix product listings for both Multicomp Pro and PRO Signal branded U3-7HUB. Other compliance statuses not stated in retrieved data.