is an older model, it is no longer sold directly by Bitmain . You can find units on secondary markets: antminer r4 silent bitcoin miner - Bitmain's blog
is a specialized SHA-256 ASIC miner originally released in late 2016. Unlike industrial-grade miners, the R4 was explicitly designed for , featuring a slim form factor and a unique centrifugal fan system to minimize noise. Current Purchasing Options (April 2026) bitmain antminer r4 buy
The Bitmain Antminer R4 Go to product viewer dialog for this item. is an older model, it is no longer sold directly by Bitmain