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GENERAL NAS FEATURE COMPARISON

NAS Plex (local 4K) Plex HD (remote) Plex 4K (remote) BACKUP (MS/GOOGLE OFFICE) BACKUP (BAREBONE) PHOTOS (OBJECT AI) VIDEO EDITING (4K) VIDEO EDITING (8K) DOCKER VIRTUAL MACHINES PC MODE (QVM) 2.5GbE 10GbE 25GbE Thunderbolt NVMe Pcie Expansion HDMI Drive Mixing
RS4021xs+
RS3621xs+

LATEST PRICE LIST

RS4021xs+10042.94 GBP5399.99 USD
RS3621xs+4223.95 GBP4530.12 USD

BEST FOR Virtualisation

NAS CPU Cores Threads Speed (GHz) Docker/VM Score ECC
RS4021xs+ Intel Xeon D-1541 8 16 2.1 (MAX:2.7) Docker/VM 10154 ECC /16 GB DDR4 ECC UDIMM
RS3621xs+ Intel Xeon D-1541 8 16 2.1 (MAX:2.7) Docker/VM 10154 ECC /8 GB DDR4 ECC UDIMM

BEST FOR MULTIMEDIA

NAS GPU Base_GHz/Max Codec FPS Transcoding Plex
RS4021xs+ / 0 2160p
RS3621xs+ / 0 2160p

BEST FOR FILE STORAGE

NAS BAYS Bandwidth HDD storage expansion Drive mixing File System
RS4021xs+ 16 HDD 24Gbit (6 ports combined) 352TB EXT4 BTRFS
RS3621xs+ 12 HDD 24Gbit (6 ports combined) 264TB EXT4 BTRFS

*All NAS support multiple RAID/ volume groups, if you want to mix different size drive on non supported model.

BEST FOR BACKUP

NAS Level HA AI Google Microsoft encryption
RS4021xs+ folder/barebone face+object volume/folder
RS3621xs+ folder/barebone face+object volume/folder

BEST FOR VIDEO EDITING

NAS MAX LAN speed Ports transcoding PCIe NVMe
RS4021xs+ 10Gbit 2x RJ-45 10GbE 2 x Gen3 x8
RS3621xs+ 10Gbit 2x RJ-45 10GbE 2 x Gen3 x8

BEST FOR SURVEILLANCE (CCTV)

NAS HDMI QVM transcoding AI
RS4021xs+
RS3621xs+

BEST FOR SMART HOME/ AI

NAS Virtual switch Docker/VM HDMI S/PDIF / AUX
RS4021xs+ Docker/VM
RS3621xs+ Docker/VM

LATEST VIDEOS RELATED


AVAILABILITY / RELEASE DATE

Brand Model TW USA UK Released
Synology RS4021xs+ 2021-01
Synology RS3621xs+ 2021-01

LATEST POSTS RELATED


Synology RS3621xs+ NAS Hardware Review
Synology RS3621XS+, RS4021XS+ and RS3621RPxs Specifications Revealed
Synology RS3621xs+, RS362RP1xs and RS4021xs+ NAS Coming Soon


RELATED REVIEWS

SOFTWARE - 9/10
HARDWARE - 9/10
PERFORMANCE - 9/10
PRICE - 7/10
VALUE - 8/10


8.4
PROS
👍🏻8-Core Xeon Processor
👍🏻Two 10GBe Connections as Standard
👍🏻Two PCIe Gen 3 x8 PCIe Equipped
👍🏻4 Slots that Support DDR4 ECC UDIMM Memory
👍🏻Excellent choice of Apps
👍🏻Redundant PSU as Standard
👍🏻Numerous Backup Software Options
👍🏻Huge Virtualization Support
👍🏻Storage Can be Expanded to 36 SATA Drives
👍🏻5yr Warranty
CONS
👎🏻NVMe SSDs Ports not available, unlike desktop alternatives
👎🏻Very Limited Hard Drives Supported (Largely ONLY Synology HAT5300 series)
👎🏻64GB Memory Maximum Seems Low, given other Enterprise Solutions support 128/256GB


LATEST PRICE LIST

RS4021xs+10042.94 GBP5399.99 USD
RS3621xs+4223.95 GBP4530.12 USD
DEAL WATCH - Is It On Offer Right Now?

Synology NAS RS4021xs+ 0/16HDD Rack 3HE Amazon UK UK 162.97 OFF (WAS 6578) [LINK]
Synology 12 bay RackStation RS3621xs+ (Diskless) Amazon usa USA 53.67 OFF (WAS 4554) [LINK]
Synology 16 bay RackStation RS4021xs+ (Diskless) Amazon usa USA 50.96 OFF (WAS 5575) [LINK]

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