Removing the board, we note that the formerly modular flash storage is also now soldered down. (DIY storage swaps in the original Switch didn't work, but were at least physically possible.)

Side A of this silicon capybara:

Nvidia ODNX10-A1 (Tegra X1-based SoC, presumably a custom riff on the T210B01 variant)

2x Samsung K4U6E3S4AM-MGCJ LPDDR4X DRAM 16 Gb (4 GB total)

Samsung KLMBG2JETD-B041 32 GB eMMC flash storage

ST Microelectronics ST21NFCD NFC controller and FingerTip touch screen controller

Realtek ALC5639 audio codec

Cypress CYW4356X 802.11ac Wi-Fi + Bluetooth 5.0 SoC