This NE 555 square wave pulse generator module is a versatile tool for experimental development and various applications, such as driving stepper motors or providing an adjustable pulse for microcontroller (MCU) applications.
The module features an NE 555 timer chip with jumpers and a potentiometer to fine-tune the frequency in four frequency ranges, and a second potentiometer to adjust the d…

The Rockville BLUAMP 90 is a Bluetooth amplifier designed for home audio use.
With a range of inputs including mic, phono, and HDMI, it offers flexibility for playback from a variety of devices. The high-quality build and powerful output make for an impressive listening experience.
It comes with a 1-year warranty and is brand new in original packaging. Setup instructions are included for …

The Voltage Master Digital Display for Vehicles is a measuring tool designed to accurately display the voltage of a vehicle's DC power source.
With a measuring range of DC 5.00 ~ 30.0V and an input impedance of > 100K ohms, this voltmeter provides readings with an allowable error of ± 1%.
The display mode features three 0.56" LED digital tubes, and the opening size is approximately 46 x 2…

The Zebra Printer Charger is a power supply designed for printers and scanners.
It boasts a strong build that enables it to handle heavy-duty usage and delivers long-lasting performance. The device comes equipped with smart surge protection, safeguarding against over-voltage, temperature, and short circuits.
The product meets CCC SA CE RoHS certification equipment standards and is conveni…

The A-Tech 64GB 4x 16GB 2Rx 8 PC 4-21300R DDR 4 2666MHz ECC REG RDIMM Server Memory RAM is designed for high-performance servers requiring reliable memory solutions.
With a frequency of 2666MHz and a dual rank x 8 configuration, this memory kit offers a total capacity of 64GB. Ideal for data-intensive applications, this DDR 4 memory module ensures efficient data access and processing for enha…

The Smart RFID Duplicator is a portable and budget-friendly tool designed for RFID access control.
This device can match various types of cards, supporting a wide range of frequencies including 125khz, 250khz, 375khz, 500khz, 625khz, 750khz, 875khz, 1000khz, and 13.56khz.
It features a 3.2-inch full-color screen with a built-in multi-lingual display and voice operation prompt. Additionall…

The Optix Power Adapter is a high-quality replacement product for the MSI Optix AG 32C, AG 32CQ, and MAG 321CQR LED monitors.
With an input of AC 100-240V and output of DC 12V, 5A, this adapter provides a power of 60W. It comes with a 2.5ft US power cord and a 2-prong outlet.
Please ensure that the DC output and tip size are compatible with your device before purchasing. The adapter is sh…

This Dual-Band WiFi Antenna Set for Wireless Routers is a great option for those looking to improve the signal strength and range of their wireless desktop card or wireless router.
With a frequency of 2.4GHz / 5GHz and an RP-SMA Male connector, this antenna is compliant with 802.11b/g/n/ac and compatible with most AP/Routers and wireless desktop cards.
The omni-directional design allows f…

The Tripp-Lite Rack Mount Surge Protector is a reliable power distribution solution for electronics.
With 6 rear-facing NEMA 5-15R outlets, it fits a 19-inch rack and uses only 1 rack space (1U) when installed. The 15 ft AC power cord and lighted switch with latching safety cover prevent accidental turnoff.
The power strip is made of metal and comes in black. It is compatible with 120V an…

The SoundBoost USB Audio Adapter with Microphone Input is a pack of five external sound cards designed to create a microphone-in and audio-out jack from the USB port on a laptop or PC.
It supports 3-dimensional sound and is USB powered, requiring no external power source. The plug-and-play installation makes it easy to use with chat programs and internet phones such as Skype, MSN, Yahoo, QQ, …