I purchased this around January of this year, a Japanese layout model of the Pulsar Gaming Gears PCMK 2HE TKL. It started malfunctioning after being dropped from the desk by a cat multiple times. Regarding the malfunction, the E/J key, which corresponds to the half-width/full-width key, doesn't work at all. Also, while in use, if the keyboard is moved significantly, the connection is sometimes present, but the keys don't work at all. It becomes usable after plugging and unplugging the USB cable, and if it's not moved, the keys don't suddenly stop working. The above are the malfunctions I've confirmed while using it. I've checked on a website that can check if the keys are responding, and the other keys are working without any problems. The actuation point settings also seem to be functioning correctly. Also, I've replaced the switches for the W, A, and D keys with Gateron Magnetic Jade Switches. I replaced them after the original key switch broke, so please be aware that I don't have the original key switches. This item will be sold as semi-junk, so returns are not accepted after purchase. I would appreciate it if you could consider purchasing it with a full understanding of the condition.