I should have clarified: I think mine was not soldered, but yours does look soldered. I think it is a TUHS5F12, see page 4 of this:
https://en.cosel.co.jp/tool/tag/pdf/SFE_TUHS.pdf

Main: DSP8000SE< 218 < Farad Super3 TMCB < PS Audio P10. Room correction: Focus Fidelity.
Second: Fostex Fe206NV2 < Audio innovations 500 valve amp < Wiim Pro +
Study: DSP33 < Reviver < MS200
Server: ROCK + Tidal on NUC, fiber on 2x cisco 2960, HD-Plex LPS.
Gone: DSP7200SEu, DSW, DSP5500mkI & DSP5000mkI, 508.20, 210