hardware - Was the Ram Turbo the only 3rd party Interface 2 ROM cartridge interface for the ZX Spectrum or were there others? - Retrocomputing Stack Exchange
4116 Dynamic ram STC 16K x 1 DRAM SINCLAIR ZX SPECTRUM - 8PCS + Socket - (NEW) | eBay
A Sinclair ZX Spectrum 16k RAM personal computer, a ZS Spectrum + 3 computer, a Systema Meteor chess
Chips
4116 Dynamic ram STC 16K x 1 DRAM SINCLAIR ZX SPECTRUM 8PCS + Socket base (NEW) | eBay