Unmanaged desktop network switches.
TP-Link offers two near-identical 8-port 10G unmanaged switches: the consumer TL-SX1008 with a 3-year warranty and the business DS1008X with five. I picked the cheaper TL-SX1008 to upgrade my home network to 10Gbps.
I bought the TP-Link 8-Port Gigabit Desktop Switch (TL-SG108) from Challenger VivoCity for S$43, my first TP-Link product, for my new house. I'd weighed it against D-Link's metal-cased DGS-108 at S$55 but chose the cheaper TP-Link.
On the night of PC Show 2011, my brother called to say my D-Link DGS-1008D switch, bought at IT Show 2009, had died. I went home, confirmed it, and returned the next day to buy the same switch for S$85.