64GB (2×32GB) DUAL-MODULE KIT — Expands your Synology NAS past the listed 32GB ceiling; both matched 32GB modules are fully recognized by DSM on the AMD Ryzen-based models listed below — ideal for virtual machines, Docker containers, Plex transcoding, and Surveillance Station.
BUILT FOR SYNOLOGY NAS — Drop-in equivalent to Synology D4ES0-32G. Compatible with DS1821+, DS1621+, DS1621xs+, RS1221+, DS923+, DS723+ and more (full list below). A non-proprietary, warranty-safe upgrade — no soldering, no special tools.
ECC ERROR CORRECTION — On-module error-correcting code automatically detects and repairs single-bit memory errors — essential data-integrity protection for 24/7 NAS storage, backups, and RAID volumes where corruption isn't an option.
EXACT SPEC MATCH — DDR4-2666 (PC4-21300), 260-pin SODIMM, 2Rx8, CL19, 1.2V low-voltage, Unbuffered ECC. JEDEC-standard and ROHS-compliant for stable plug-and-play operation — install and boot, no BIOS changes.
TESTED & SUPPORTED — Each module is 100% tested for NAS reliability and backed by NVTEK lifetime Replacement Warranty Plus US-based support. Easy DIY install in minutes.
8GB (2X4GB) DDR3 1600MHz PC3-12800 SODIMM 2Rx8 1.35V 204-PIN Non-ECC Laptop PC Computer Memory KIT
SAR 308
8GB (1X8GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 260-PIN Non-ECC SODIMM Laptop PC Computer Memory
SAR 188
16GB (2X8GB) DDR3 1600MHz PC3-12800 UDIMM 2Rx8 1.35V 240-PIN Non-ECC Unbuffered Desktop PC Computer Memory KIT
SAR 230
NVTEK 16GB DDR4-2666 PC4-21300 Non-ECC UDIMM Desktop PC RAM Memory Upgrade
SAR 345
