Pros: Works as expected. No problems experienced with the installation nor drivers setup.

Cons: The label on the disk says first install the drivers, then the PCI card, the manual on the same disk says install the PCI card first, then the drivers. Go figure.

Overall Review: It creates LPT2 and LPT3 devices in Windows. Works with Linux without any installations.

Pros: Fast.

Cons: Too noisy. Every 5 seconds when the Windows commits the NTFS transaction log (or whatever else it does) the drive knocks loudly. It's SO ANNOYING! 5 sec. of silence and then the knock. And again and again and again! When there an active read/write operations having place the drive rumbles as a washer machine. The last time I heard a such noisy drive it was an old MFM 20MB drive on a PC XT. I thought the drive is going to fail, but the SMART reports no warnings. Still, I'm so disappointed, because that noise affects my work.

Pros: Convenient compact way to type in text and control the mouse cursor. I like how the keys respond. Working range is decent (at least with new batteries)

Cons: The touchpad is small and not precise enough. Some essential key combination just do not work. For an instance, it's impossible to close a window pressing Alt+F4. For that you need to press Alt+Fn+4 and it just failed. The device sleeps down after a short period of time and does not respond on the touchpad or any key pressing after. The instruction manual does not say anything how the device could be waked up. Figured out it could be done by switching OFF->ON or pressing the PgDn/PgUp buttons (residing on the side part of the keyboard!). The bright blue led flashes on each key press.

Overall Review: This device has two extra features. If you don't need the keyboard, but you just want to control the mouse cursor using the touchpad with one hand, you can rotate the touchpad axes. Also the keyboard has built in LED flashlight (why?)

Pros: It works! The included micro-USB cable is data capable not charge-only.

Cons: The on/off switch is tiny and hard to operate. Awful smell of the rubber/plastic .

Overall Review: Some keys are presented twice (having the second backspace on the left might be handy, but why two caps locks placed close together?).

Pros: works excellent. Thick cable, well made.

Cons: It's too short. 3ft is the total length - from connector's head to the other one. But because the cable is thick it can not be bent much, so that reduces the effective length even more.

Pros: works

Cons: none

Overall Review: It properly connects the motherboard's COM port pins to the external serial device.