Best Serial Server

RedTagCanada SIM900 Quad Band GSM GPRS Quad-Band Modules 2G Shield Development Board for R3 Mega with Antenna for Arduino SCM & DIY Kits

Embedded TCP / UDP stack - allows you to upload data to a Web server | RTC supported | selectable serial port | Jac speakers and headphones.
Quad-Band 850/900/1800/1900 MHz - could work on GSM networks in all countries around the world, work with Uno Mega..
This is a new version (64M version), SMS support MMS: Multimedia message and Short Message Service - so it is possible to send small amounts of data over the network (ASCII or raw hexadecimal).
The shield allows you to get SMS, MMS, GPRS and audio via UART by sending AT commands (GSM 07.07, 07.05 and SIMCOM enhanced to commands). The shield also has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module (They are all 2V8 logic) present on board..
Application: M2M (Machine 2 Machine) Applications.Remote control of appliances.Remote Weather Station or Wireless Sensor Network.Vehicle tracking system with a GPS module.Good to learn GSM / GPRS mobile phone development, control development of remote equipment, wireless meter reading, smart appliances, ultra long distance control, etc..
Control via AT commands - Standard Commands: GSM 07.07 & 07.05 | Enhanced.
Power jack - connected to external 4.8~5VDC power supply, Antenna interface - connected to external antenna, Serial port select - select either software s....

This product do not include user manual, if you need, we will send the pdf file to you.
HF2211 is a low-cost serial device server,which function is to realize bidirectional transparent transmission between RS232/RS485/RS422 and WiFi/Ethernet..
Support RS232/RS422/RS485 to Ethernet/Wi-Fi Conversion, Serial Speed Upto 460800 bps.
MIPS MCU with 4MB Flash and 8MB SRAM. Run on eCos.

Intel Server System R1304btlshbnr Barebone System - 1u Rack-mountable - Socket H2 Lga-1155 - 1 X Processor Support - 32 Gb Maximum Ram Support - Serial Ata Raid Supported Controller - Intel Integrated - 5 X Total Bays - 1 X Total Expansion Slots - Processor Support (xeon).

PRINTS ON WIDE FORMAT LABELS UP TO 4” WIDE: Perfect for printing mailing, address and postage labels for packages along with visitor and name badges.
CONNECTIVITY & WIRELESS PRINTING: Bluetooth wireless technology, Ethernet or Wireless (802. 11b/g/n) interfaces.
BARCODE CROP FUNCTION: No more printing sheets of barcodes. Now, easily crop and select barcodes and UPCs for printing from templates (Windows only).Database File Compatibility: CSV, Microsoft SQL Server Database (Windows), TXT, MDB, XLS.
Operating system : Windows Vista, Windows 7, Windows 8/8. 1, Windows 10.
Mac OS X 10. 11 - 10. 13. x . “PLUG & LABEL” FEATURE: Lets you create and print labels without the need to install software on Windows PCs.
NETWORK MANAGEMENT TOOLS & FREE SOFTWARE DEVELOPMENT KITS (SDK): Easily integrate & manage via network, free SDKs for Windows, iOS & Android systems. Maximum Label Length: 9. 8 Feet (USB) 3 feet (Serial).

Lenovo ThinkSystem ST50 Tower Server Bundle with Microsoft Windows 2019 Operating System for Small Business and Remote Offices.
Processor: Intel Xeon E-2124G Quad-Core 3.4GHz 8MB CPU, Up To 4.5GHz Turbo.
Memory: 64GB DDR4 PC4-21300 2666MHz Unbuffered Memory.
Storage: 12TB (3 x 4TB) 6Gb/s SATA Hard Drives for High Capacity Storage.
Microsoft Windows Server 2019 Standard, Retail.
Hard drives and memory upgrades included separately NOT installed, installation required..

PCIe CARD WITH SERIAL & PARALLEL PORT: Using a x1 PCIe 2.0 slot, add a DB25 parallel & a DB9 RS232 port to your computer.
Card installs in full/standard profile PCIe slot.
Latest version of our popular PEX1S1P952.
TECH SPECS: Parallel Speeds up to 2.5Mbps | Supports SPP/Byte/ECP modes | Compatible with IEEE 1284 | Asix AX99100 chip | RS232 speeds up to 921.6Kbps | 16C950 UART | 256 byte FIFO buffer.
VERSATILE APPLICATIONS: PCIe expansion combo card adds LPT Printer & COM serial ports working with printers, scanners, plotters, point of sale terminals, PLCs, control/automation in factories, scientific sensors, medical equipment, oscilloscope.
WIDE COMPATABILITY: PCI Express RS232 serial/parallel adapter card is compliant with PCI-E Base Spec. Rev. 2 & PCI Power Mgmt 1.2.
Windows (7 and up) Windows Server (2003 and up) and Linux (2.6.X and up).

Lenovo ThinkSystem ST250 Tower Server Bundle with Microsoft Windows 2019 Operating System for Small Business and Remote Offices.
Processor: Intel Xeon E-2124 Quad-Core 3.3GHz 8MB CPU, Up To 4.3GHz Turbo.
Memory: 64GB DDR4 PC4-21300 2666MHz Unbuffered Memory.
Storage: 16TB (4 x 4TB) 6Gb/s SATA Hard Drives for High Capacity Storage.
Microsoft Windows Server 2019 Standard, Retail.
Hard drives and memory upgrades included separately NOT installed, installation required..

Detachable Guest Checks: Our small guest check pads are perforated to rip easily from the booklet. You can use our checks as a receipt for customers, or keep for accounting and record keeping purposes. Great for hotel restaurants, bars, lounges, cafes, and more!.
Numbered Checks: Each check has a unique serial number printed at the top, helping prevent numerical and clerical errors. This is also useful for keeping track of orders. Perfect for restaurants, diners, food trucks, takeout and delivery services, and more!.
Great Value Pack: Our value pack comes with 10 mini guest check pads - each with 100 bound sheets (1,000 order sheets in total)! Pad measures 5 1/8” Length x 3 ½” Width..