A roundup of products that may interest radio amateurs, part 3

It's been quite a while since I last posted a roundup of products, so today I decided to make up for it.
There won't be too many items, but I've tried to pick out things that might be interesting, including some I've bought myself. That said, feel free to share links to anything you think might be worth a look.
I may add more items later, so check back for updates.

A fan speed controller that adjusts the speed based on temperature. I recommend it; I bought 8 of them for various projects, especially high-power electronic loads.
There are two main types of boards: three-pin versions, where the board controls the fan by changing the voltage, and four-pin versions, where it sends a PWM signal to the fan controller. Make sure you get the right one.
I bought the three-pin version — link. It costs $1.91 + $1.15 shipping, so it's cheaper to order several at once.



The same seller also has the four-pin version, for a little less — link



An interesting little gadget that lets you connect to a whole bunch of contacts on small devices, for reading data and so on — link. It costs $15 to $57, depending on the configuration.




Power stage for a high-power inverter — link. It's available with or without transistors and costs $14.72–38.64.




IXTK90N25L2 transistors. They look like genuine used parts and are great for electronic loads because they work well in linear mode — link. They cost about $5 each.



Very nice-looking 140 W, 19 V power supplies — link. They cost about $15.



A page full of buttons to suit every taste. I think this seller even offers custom icons; I want to buy some of these — link. They cost $1.58 with free shipping. There's a cheaper option, but shipping is extra, so it's not always clear which is the better deal.




A wide selection of PoE switches at quite reasonable prices — link. Prices vary depending on the port configuration.




Another PoE switch, but with gigabit ports. I'm thinking of replacing the one I have now, since sometimes I need both types — link. It costs about $40 for 8+2 ports.




Very nice 2004 LCD modules, and importantly, they support Cyrillic — link. They cost $5.50 + $2.40 shipping.




A convenient and fairly powerful electronic load for anyone who doesn't want to solder anything — link. It costs $29.03–38.06, depending on the power rating (150 or 180 W).



A thermal camera. I'm thinking of replacing my old one; it has an IR resolution of 220x160 pixels — link. It costs $336.02, with shipping extra.
If you order one, ask the seller to declare it as just an IR thermometer and to state a lower value.




Another interesting model, with the same IR specs as the previous one, 220x160, but in a different form factor. For some reason, it seemed less convenient to me — link. It costs $323.00, with free shipping.




Two active balancer options for LiFePO4 — link. The price depends on the number of cells you need to connect.




A pretty good, inexpensive protection board, available in 4 versions: 4/5S and lithium-ion/lithium iron phosphate — link. It costs $3.22.




A whole series of high-power, high-voltage converters with remote control — link.




In this case, I'm recommending the seller more than the product. I bought a tablet battery from him; its capacity is exactly as advertised, shipping and delivery were fast, and the packaging was excellent - link.




Inexpensive boards for basic power banks. I buy them for a friend quite often, and there have been no complaints - link, about $1.15 including shipping




A case for building battery packs for Makita tools. I bought one and have no complaints - link, prices vary depending on the quantity in the lot.




“English-language” 2004 LCDs. I bought one for myself; couldn't find it cheaper - link, available in two colors and two versions (parallel or serial interface)




A protection board for 4S packs, rated for up to 20 A. It works, no complaints, and the price is a steal - link, $1.06 + $0.15 shipping.




Probably one of the most popular protection and balancing boards, rated for up to 100 A, 3–5S - link, priced at $2.93–3.10, plus $0.81 shipping.




A small T-handle wrench, just a handy little thing. I bought one for a friend, and he seems happy with it - link.




A step-down converter rated for up to 20 A. I bought one and it works, but I haven't fully tested it yet. I chose it based on the lowest price and number of reviews - link, priced at $5.85.




LED strips for replacing the backlight lamps in monitors and TVs. I recommend the seller: although the first package was broken by the postal service despite the excellent packaging, the seller refunded me without any questions, so I ordered again - link, $4.16 for two strips and a converter.




A pretty decent single-channel oscilloscope. I even reviewed it; it costs $63 - link.
Since it's battery-powered, it's well suited for working with power supplies.




Electronic load modules for easier assembly. Rated power is 150 W, though 200 W models are also available. I used a similar one once; they cost $27–31 depending on the configuration - link.




An ammeter-voltmeter with the ability to control external devices. Using this and the module shown above, you can build a pretty decent load, though it will be limited to 20 A - link.




A nice-looking touch switch with backlighting - link




A 2004 display from the “fancy and expensive” category—or, more simply, an OLED - link, priced at $15.98 + $6 shipping.




Even cooler: a VFD, though it's only 1602, and the seller claims it's compatible with the 44780 - link, priced at $24.99 + $3.50 shipping




That's not the end of the list, but I'd be interested to hear if anyone has links to useful and interesting products they've come across on AliExpress.