Day: March 25, 2026

See how the new M4 iPad Air compares to the best tablets from Lenovo, Samsung, Microsoft, and Amazon Fire.

Amazon’s Big Spring Sale is back from March 25 to 31. Shop the best deals on Apple, headphones, TVs, and more.

Find the best Kindle deal in the Amazon Spring Sale. Save 16% on the like-new Amazon Kindle Paperwhite.

Amazon has the Pokémon TCG Mega Charizard X ex Ultra-Premium Collection for $189.47, just above its $187.05 market value.

As of March 25, the DJI Mini 4K is down to its lowest ever price at $209 on Amazon, 30% off its list price of $299.

Grab Apple M4 MacBook Airs during Amazon’s Big Spring Sale starting at $899. The 512GB version is $949, a $250 price drop.

We tested the best headphones from Sony, Bose, Apple, and Bowers & Wilkins. See the top contenders on sale during Amazon’s Big Spring Sale.

Get live updates on the Amazon Big Spring Sale 2026. We found record-low prices on Apple MacBooks, DJI drones, Legos, and more.

Air, Pro, mini, or original flavor? After testing all the latest Apple tablets, we picked the top iPads for every use case.

DFRobot’s RainbowLink-V2 USB-to-serial converter features four independent channels, namely one isolated RS-485, one isolated RS-232, and two TTL interfaces usable simultaneously. The compact tool also converts 5V provided from the host’s USB interface to 12V/800mA, 5V/2A, and 3.3V/200mA outputs, eliminating the need for a separate power adapter. RainbowLink-V2 (TEL0190) specifications: USB – 1x USB Type-C port for power and adata Serial 2x TTL (3.3V) via headers 1x fully isolated RS485 channel via lever terminal 1x fully isolated RS232 channel via lever terminal Baud Rate – 2400 to 128000 bps Misc 3x Power LEDs for 3.3V, 5V, and 12V 4x Link LEDs for TTL 1/2, RS232, and RS485 12AWG – 22AWG wires supported on lever-type spring terminals Built-in short-circuit protection and overcurrent protection (but users are still recommended to avoid short-circuiting to prevent damage) Input voltage – 5V via USB-C port Output voltage 3.3V up to 200mA via header 5V up […]

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