Beautiful cat, man. I was never much of a cat person til I aquired the one I currently have. He's a very special boy... I know cause I grew up with a crazy cat lady and have seen many lol. He knows a larger vocabulary than most dogs and is smart enough to know to turn doorknobs to get them to open. Unusually intelligent kitty. Someone declawed and dumped him, then he showed up at my door meowing, trying to get in. I opened the door and he dashed in, grabbed a dog toy and ran back out. I had no clue what to make of it cause I've never seen a cat pull a stunt like that before. The next day he was back... I let him in again and he refused to go back out. Fair enough, you're mine now.
Your cat looks quite a bit like one of mine (I have 3 cats currently)..
He's about a year old, and is what's known as a Savannah Cat (https://en.wikipedia.org/wiki/Savannah_cat), which is a crossbreed of an African Serval and a Domestic Housecat. My boy is a F5, which means he's 11% Serval and 89% housecat, but his Serval tenancies still come through. Savannaha Cats are very smart and communicative. They come in both striped and spotted patterns. I wouldn't be too surprised if your cat is a Savannah Cat too, especially considering that someone spent money on him to get declawed.