#Computer Components

Computer & Office

AMD Wraith Prism CPU Cooler for Ryzen — Check Socket, Mounting Kit and Exact Wraith Model

If you bought a Ryzen CPU as a tray chip or lost the boxed cooler, an AMD Wraith cooler is the cheapest way back to a working build — but the Wraith name covers several very different coolers. This listing is a Wraith Prism with a 4-pin PWM fan, stated to support R3, R5, R7 and R9 CPUs on AMD motherboards. Three checks decide whether it drops in. First the socket: this is an AM4 cooler, and AM4 and AM5 keep the same cooler mounting holes, so it also fits AM5 boards — but not Intel sockets or older AM3/AM3+, so confirm your board. Second the mounting kit: boxed coolers are often sold loose, without retention clips or backplate, and some AMD boards need the original backplate that came with the board — ask what is in the box. Third which cooler it actually is: Wraith Prism, Wraith Spire and Wraith Stealth differ in height and heatsink size, and the Prism is the taller RGB model; confirm the model and whether the RGB cable is included. A boxed cooler like this is fine at stock clocks, but it is not the cooler to buy for heavy overclocking. 1076 sold with a 98.0% positive rating.

Computer & Office

Wio Tracker L1 Pro Meshtastic LoRa Node (nRF52840, GPS, 862-930MHz): Pick the Band That Matches Your Region and Your Friends

A LoRa mesh node is what you reach for when there is no mobile coverage at all: it sends small text messages and position updates directly between radios, so a walking group, a bike convoy or a farm can stay in contact without a base station. This Wio Tracker L1 Pro is listed with an nRF52840 radio, an L76K GPS module, built-in batteries and a 862-930MHz tuning range, from the Seeed Studio store, with more than 760 sold at a 98.6 percent positive rate. Before you order, sort out the one thing that decides whether it works at all: the band. LoRa is regulated, and 868MHz and 915MHz are used by different regions; two nodes on different bands simply will not hear each other. Decide which band is legal where you live and match it to the band your group already uses, then confirm with the seller that the unit you are buying is the correct variant rather than one advertised with a wide range. Plan the rest of the setup as well: you will need a USB-C cable to charge and configure it, and you must know how you intend to configure and manage the network before it leaves the box. These nodes are also a popular DIY platform, so expect to read documentation and flash firmware rather than press one button - that is exactly where the value is.