L298n dc driver

->We can provide best quality DC-DC Driver PCBs to assemble or replace in high frequency online UPS.->All the components used are industrial grade, These PCBs are fully tested for its function and after the QC, it is ready to ship from our workshop.

EKRAJ 3.0 USB Hub has 7 USB ports allowing 7 devices transfer data at the same time. Pie shape makes the hub cute and easy to carry. Plug-and-play, no driver installation required. It will be a good partner when you traveling. Features: Pie shape design. 7 ports allow 7 devices transfer data at the same time. Support 1TB hard drive. High speed: Data transfer rate is 480mbps. Easy to use: Plug-and-play, no driver installation required. Portable: Small and light. Interface type: USB 3.0 and power port DC 3.5 USB ports quantity: 7 Fully compliant: USB 3.0 / 480mbps Backwards compatible: USB 1.1 / 12mbps

* 8 ports SIM card slots.Just like 8 single-channel equipments work at the same time * 2G GSM Frequency: 900/1800MHz * SMS sending: 600/800/1000/1200 SMS per hour by one port * Connection with the computer through RS232 interface (PCI card is opitonal) can be integrated with USB interface * Each port with separate power switch * Each individual module can be discharged * Bulk sms/mms sending, voice ads, data consumption and IMEI changeable etc * Open AT command * Industrial chassis, elegant shell * Wireless access to interne * Comply with GSM phase2 standard * Internet Services: PPP,TCP, UDP, FTP,HTTP, SMTP, POP3 Model NO. : QS81 Module : QS80 Network : GSM Frequency : Dual band: 850/900/1800/1900 Mhz Max Transmit Power Class 1(1W):DSC1800,PCS1900 Class 2(2W):GSM850,EGSM900 SIM Port : 8 x SIM card(big/small) slots SMS quantity : Send 600/800/1000/1200 SMS per hour by one port SIM port : Big card:85*53mm , small card:25*15mm, 1.8V or 3V Port : USB2.0/PCI Function:Bulk sms/mms,voice,wap,imei change,stk recharge,CSD,etc. Internet : Wireless Access to internet With TCP/IP stack Internet Services: PPP,TCP, UDP, FTP,HTTP, SMTP, POP3 AT command PC System : Windows2000,Windows XP,Windows Vista,Windows 7,WinCE 4.2,WinCE 5.0,WinCE 6.0,Linux,MAC Input voltage DC 12V~24V Working temperature -20℃~+70℃ Storage temperature -40℃~+85℃ Size : 220*120*114mm Package size : 27*21*17.1cm Housing : Aluminum Casing Weight :3.0kg Accessories :AC/DC adapter, USB cable/PCI card, Antennas and driver