This 4 TB DDR5 kit just hit $76,999

The kit is sold by NEMIX and is built for servers and workstations, not gaming rigs. It is a 16-stick set, with 16x 256 GB ECC RDIMMs for a total of 4 TB. The listing calls out DDR5-6400 speed, CAS latency 52, and 1.1 V operation.
This type of memory costs more because it is not standard desktop UDIMM DDR5. These are registered DIMMs with buffering, and they include full ECC support with extra components beyond DDR5’s on-die ECC. That added hardware is part of why the price per GB lands far above typical consumer memory.

Source: NEMIX RAM
The funny comparison is that the memory kit now costs more than a sports car. A 2025 Corvette Stingray 1LT shows $70,195 after offers, while the memory kit sits at $76,999. At this price, the “RAM upgrade” is the bigger purchase.

Source: Chevrolet
This kit is aimed at hyperscalers and enterprise workloads that need huge, reliable memory pools for AI training, virtualization, and in-memory databases. Most buyers at that scale will likely negotiate volume pricing instead of paying retail.
The funny part? A 4 TB DDR5 ECC RDIMM memory kit that TechPowerUp spotted yesterday just got pricier. The listed price moved from $70,800 to $76,999 in about a day, a $6,199 jump. That’s the price of a high-end gaming PC, in just one day.
The good news is that you still have an alternative: a 2TB kit cots only $38,999:
Source: NEMIX RAM , TechPowerUP
