Planet FSD-803 8-port switch

 DC-DC converter with 34063 and SDM9435A P-channel MOSFET.

WRT54GC v2 router

 Small, popular router with 1+4 ethernet ports and WiFi.

 Whole thing is held together by plastic latches and single screw under one of the rubber feet.

 Marvell 88E6060 switch chip.

29LV800 - 8Mbit Flash memory.
EM638165 - 8Mbit SDRAM.

ZTE ZXDSL 852 modem

ADSL USB modem, quite popular in Poland.

 Single screw to open.

 It is based on Unicorn II chipset from ST Microelectronics: ST70138 DMT engine and USB 1.1 controller and MTC20174 AFE (Analog Front-End: 12-bit 8.8Msamples/s DAC, 13-bit 8.8Msamples/s ADC, PGAs, filters, DCXO, PLL, line driver).

 Atmel 93C66A: 4kbit SPI EEPROM