![foone🏳️⚧️ on Twitter: "@gleawlic There is at least one PC motherboard that came with a vacuum tube! And yes, it was extremely silly. https://t.co/rlHYRxm0zC" / Twitter foone🏳️⚧️ on Twitter: "@gleawlic There is at least one PC motherboard that came with a vacuum tube! And yes, it was extremely silly. https://t.co/rlHYRxm0zC" / Twitter](https://pbs.twimg.com/media/DqJP4P7U0AAC34L.jpg)
foone🏳️⚧️ on Twitter: "@gleawlic There is at least one PC motherboard that came with a vacuum tube! And yes, it was extremely silly. https://t.co/rlHYRxm0zC" / Twitter
![foone🏳️⚧️ on Twitter: "BTW the board is the AOpen AX4B-533 Tube, in case you'd like to research more. (I just realized I didn't say the name)" / Twitter foone🏳️⚧️ on Twitter: "BTW the board is the AOpen AX4B-533 Tube, in case you'd like to research more. (I just realized I didn't say the name)" / Twitter](https://pbs.twimg.com/media/Dr6dUkaV4AA2wlu.jpg)
foone🏳️⚧️ on Twitter: "BTW the board is the AOpen AX4B-533 Tube, in case you'd like to research more. (I just realized I didn't say the name)" / Twitter
![foone🏳️⚧️ on Twitter: "This is the AOpen AX4b-533 Tube. Wait, Tube? https://t.co/iLA1XPT7je" / Twitter foone🏳️⚧️ on Twitter: "This is the AOpen AX4b-533 Tube. Wait, Tube? https://t.co/iLA1XPT7je" / Twitter](https://pbs.twimg.com/media/EL4ced4UEAAtOS2.jpg)
foone🏳️⚧️ on Twitter: "This is the AOpen AX4b-533 Tube. Wait, Tube? https://t.co/iLA1XPT7je" / Twitter
![OFFTEK 1GB Replacement Memory RAM Upgrade for Aopen AX4B-533 Tube (PC3200 - Non-ECC) Motherboard Memory at Amazon.com OFFTEK 1GB Replacement Memory RAM Upgrade for Aopen AX4B-533 Tube (PC3200 - Non-ECC) Motherboard Memory at Amazon.com](https://m.media-amazon.com/images/I/61d8AogLHxL._AC_UF894,1000_QL80_.jpg)
OFFTEK 1GB Replacement Memory RAM Upgrade for Aopen AX4B-533 Tube (PC3200 - Non-ECC) Motherboard Memory at Amazon.com
![foone🏳️⚧️ on Twitter: "So yeah. This motherboard has a vacuum-tube based pre-amp for the on-board sound card, with the intention of giving it "true analog sound", something no other motherboard can match. foone🏳️⚧️ on Twitter: "So yeah. This motherboard has a vacuum-tube based pre-amp for the on-board sound card, with the intention of giving it "true analog sound", something no other motherboard can match.](https://pbs.twimg.com/media/EL4c49jUwAELKro.jpg)