db.r6g.12xlarge is an Amazon Neptune size with 48 vCPUs, 384 GiB memory (AWS Graviton2). In US East (N. Virginia) it costs $7.926 per hour on demand ($5,786.20 per month) for Standard storage. It is sold in 28 regions.
Prices by region
USD per hour, Standard storage. Reserved prices are no upfront, standard. Cheapest on-demand first.