Synology RackStation RS1221+. Supported storage drive types: HDD & SSD, Supported storage drive…

The Synology D4NESO-2666-4G is a 4GB DDR4 memory module specified for Synology NAS systems. With a clock speed of 2666 MHz and 260-pin SO-DIMM form factor, this module is ideal for system memory expansion. Operating at 1.2V, unregistered (unbuffered) memory.
The Synology D4NESO-2666-4G memory module provides 4GB of DDR4 system RAM with a clock speed of 2666 MHz. The module features a 260-pin SO-DIMM form factor and requires only 1.2V operating voltage. This is unregistered (unbuffered) memory without ECC functionality. The module is compatible with various Synology NAS systems from the 20 series (RS820RP+, RS820+, DS920+, DS720+, DS420+, DS220+), 19 series (DS2419+, DS2419+II, DS1819+, DVA3219), and 18 series (DS1618+). Manufactured in Taiwan, this memory module provides reliable performance when upgrading your Synology NAS system.