NAS enclosures / Comparison

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These packages exclude user-storage drives. Operating-system boot storage is not included data-drive capacity. Drives, network equipment and software compatibility need separate checks.

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Documented specifications and exact purchase packages
Compare the details	Synology DS223j — diskless 1 GB US package
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US purchase package	New MFR DS223J, B&H SYDS223J; standard diskless enclosure with factory 1 GB RAM, no drive kit or optional protection plan. Product & sources Includes main unit, accessory pack, AC adapter and cord, one LAN cable and installation guide. Compatible storage drives are separate. The Type C holder for 2.5-inch drives is optional. Sources · 2026-09-13 B&H: Synology DS223J US diskless enclosure listingChecked 2026-09-13. We read the original webpage on the check date.Synology: DiskStation DS223j US hardware and software specificationsChecked 2026-09-13. We read the original webpage on the check date.Synology: DS223j product specifications, updated 6 August 2026Checked 2026-09-13. We read the original PDF on the check date. Review due. Check the current source before buying.
Where to buy	Select: New MFR DS223J, B&H SYDS223J; standard diskless enclosure with factory 1 GB RAM, no drive kit or optional protection plan. View at B&H — Synology DS223j — diskless 1 GB US package; opens in a new tab The link may open several packages. Check current price and availability with the seller. Opens in a new tab.
External rating	4.6 out of 5 from 30 ratings · B&H Photo · Checked October 23, 2026.
Main drive bays Bays for the main SATA storage drives, excluding separate M.2 slots. Check supported drive form factors and capacity limits for this exact model.	2 baysMain SATA bays. The optional Type C holder is required for 2.5-inch drives. Source · 2026-09-13 Synology: DiskStation DS223j US hardware and software specificationsChecked 2026-09-13. We read the original webpage on the check date. Review due. Check the current source before buying.
Included data drives User-storage drives supplied in this purchase package. These diskless packages require separately purchased compatible drives.	0 drivesStandard diskless enclosure; user-storage drives and optional drive holders are separate. Sources · 2026-09-13 Synology: DiskStation DS223j US hardware and software specificationsChecked 2026-09-13. We read the original webpage on the check date.B&H: Synology DS223J US diskless enclosure listingChecked 2026-09-13. We read the original webpage on the check date. Review due. Check the current source before buying.
Supplied RAM Installed system memory in the exact listed package. A shared model name can cover different factory memory configurations.	1 GBFactory 1 GB DDR4 non-ECC. Sources · 2026-09-13 Synology: DiskStation DS223j US hardware and software specificationsChecked 2026-09-13. We read the original webpage on the check date.Synology: DS223j product specifications, updated 6 August 2026Checked 2026-09-13. We read the original PDF on the check date. Review due. Check the current source before buying.
Official maximum RAM The maximum memory stated by the manufacturer for the reviewed revision. This does not endorse unofficial upgrades or establish application performance.	Not verified We have not verified this value. It is not a confirmed no or zero. Check the original source or ask the manufacturer if it affects your choice. The manufacturer specifies the supplied 1 GB but does not establish a separate maximum RAM value in the cited documents. Sources · 2026-09-13 Synology: DiskStation DS223j US hardware and software specificationsChecked 2026-09-13. We read the original webpage on the check date.Synology: DS223j product specifications, updated 6 August 2026Checked 2026-09-13. We read the original PDF on the check date. Review due. Check the current source before buying.
Memory can be upgraded Whether the reviewed hardware revision has a documented memory upgrade path. Check socket layout, supported modules and any revision changes.	Not verified We have not verified this value. It is not a confirmed no or zero. Check the original source or ask the manufacturer if it affects your choice. The cited manufacturer specifications do not state whether memory can be upgraded. Sources · 2026-09-13 Synology: DiskStation DS223j US hardware and software specificationsChecked 2026-09-13. We read the original webpage on the check date.Synology: DS223j product specifications, updated 6 August 2026Checked 2026-09-13. We read the original PDF on the check date. Review due. Check the current source before buying.
Fastest Ethernet port Highest nominal speed of one supplied Ethernet port. Do not add port speeds together or treat this as measured throughput.	1 Gb/sOne nominal 1GbE port; this is not a measured file-transfer result. Source · 2026-09-13 Synology: DiskStation DS223j US hardware and software specificationsChecked 2026-09-13. We read the original webpage on the check date. Review due. Check the current source before buying.
Supplied Ethernet ports Number and nominal speed of the included Ethernet ports. Check your network and the software conditions for link aggregation or failover.	1 × 1GbE Source · 2026-09-13 Synology: DiskStation DS223j US hardware and software specificationsChecked 2026-09-13. We read the original webpage on the check date. Review due. Check the current source before buying.
M.2 slots Built-in M.2 storage slots where documented. Slot presence does not guarantee every drive or storage-pool use; check the compatibility list.	Not verified We have not verified this value. It is not a confirmed no or zero. Check the original source or ask the manufacturer if it affects your choice. The cited hardware list does not establish an M.2 slot count. Sources · 2026-09-13 Synology: DiskStation DS223j US hardware and software specificationsChecked 2026-09-13. We read the original webpage on the check date.Synology: DS223j product specifications, updated 6 August 2026Checked 2026-09-13. We read the original PDF on the check date. Review due. Check the current source before buying.
Processor The processor identified for this hardware model. Processor identity alone does not predict application, transcoding or file-serving performance.	Realtek RTD1619B Source · 2026-09-13 Synology: DiskStation DS223j US hardware and software specificationsChecked 2026-09-13. We read the original webpage on the check date. Review due. Check the current source before buying.
Questions to check before buying	RAM upgradeability, maximum RAM and M.2 slot count remain unverified. Confirm upgrade support with Synology before buying memory or M.2 drives. The optional Type C holder is needed for 2.5-inch drives. Btrfs and Snapshot Replication require DSM 7.2-64570 or later; check the current model-specific application list.

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