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QQ新款式外形-HUB;
1)提供4个USB接口，支持USB2.0和1.1版本.
2)支持数据传输;全速480Mbps、中速12Mbps、低速1.5Mbps.
3)支持热插拔,使用简便.
4)最多可连接127个外设.蓝色外壳适用于扫描仪、数码相机、数码摄像机、音频系统、显示器、输入设备等等
usb的2，0的HUB。直接USB的链接。4口的USB扩充。有口扩充。可以选择。标准的USB2.0的IC。
产品性能：采用GL850是芯片生产工艺。
产品包装：系列卡纸设计
产品保修：5年设计保修
产品功能：主要是电脑USB口的扩充，外接4口USB的。可以其他USB产品连接电脑。
产品模具：采用了ABS材料，分开式的设计，方便使用。
1) Adds 4 USB 2.0 hi-speed ports with Time Indicator
2) Fully compliant with USB 2.0 specification
3) Backwards compatible with USB 1.1
4) Supports data transfer rate at 1.5/12/480 mdps
5) Inpidual port over-current protection
6) Friendly and ergonomic design, easily potable
7) Provides up to 500mA per port, sufficient for perse devices
8) Power adapter included (5V/2.6A output)
9) Plug and play installation
10) Supports Windows ME, Windows XP /2000/Vista
11) Supports Mac OS 8.6 or above
12) Hi-speed downstream ports with USB A female connectors
13) 1 hi-speed upstream port with mini USB 5p jack
System requirements:
1) Pentium based PC or power PC based Macintosh with available USB 2. 0 port
2) Mac/Windows OS with USB 2. 0 support
GL85芯片规格书：
FEATURES:
l Compliant to USB specification Revision 2.0
- Support 4/3/2 downstream ports by I/O pin configuration
- Upstream port supports both high-speed (HS) and full-speed (FS) traffic
- Downstream ports support HS, FS, and low-speed (LS) traffic
- 1 control pipe (endpoint 0, 64-byte data payload) and 1 interrupt pipe (endpoint 1, 1-byte data payload)
- Backward compatible to USB specification Revision 1.1
l On-chip 8-bit micro-processor
- RISC-like architecture
- USB optimized instruction set
- Performance: 6 MIPS @ 12MHz
- With 64-byte RAM and 2K mask ROM
- Support customized PID, VID by reading external EEPROM
- Support downstream port configuration by reading external EEPROM
l Single Transaction Translator (STT)
- Single TT shares the same TT control logics for all downstream port devices. This is the most cost
effective solution for TT. Multiple TT provides inpidual TT control logics for each downstream port.
This is a performance better choice for USB 2.0 hub. Please refer to GL852 datasheet for more
detailed information.
l Integrate USB 2.0 transceiver
l Each downstream port supports two-color status indicator, with automatic and manual modes compliant to USB specification Revision 2.0
l Built-in upstream 1.5K pull-up and downstream 15K pull-down
l Embed serial resister for USB signals
l Support both inpidual and gang modes of power management and over-current detection for
downstream ports
l Conform to bus power requirements
l Automatic switching between self-powered and bus-powered modes
l Support compound-device (non-removable in downstream ports) by I/O port
创建于2003年，占地面积1000平方，设备齐全、辅助设施完善。现有员工100多人，高、中级技术人员二十余人。我公司是主要生产加工电子产品.电脑周边产品及实用性电子消费类产品及礼品的生产厂家.主要产品usb电脑读卡器（多款式/内置.外置）。有USB 集线器系列；USB 灯/ 风扇系列；USB声卡.网卡；VOIP.SKYPE网络电话；USB鼠标垫系列；读卡器系列；USB工具包；USB 商务礼品包；U盘；摄像头.鼠标系列；蓝牙适配器；数码相框等电脑周边产品.可根据客户的要求设计开发其他OEM及ODM产品.我们以完善的管理、稳定可靠的质量、合理的价格，准确及时的交期，细心周到的服务蠃得客户的信赖。产品已销往国内各地及欧、美、港、澳、日本、韩国及东南亚其它国家和地区。