Is the memory upgradable?

No it can't. DS220J memory is fixed at 512 MB. Current software upgrade requires a minimum of 1 GB according to Synology's own notes. Avoid this model/brand.

what physical size harddrives can be used?

The hard drive "size" is not the physical size of the drive itself but the diameter of the platter inside the drive. A standard desktop HDD is 5.75" x 4" but has a 3.5" platter inside. Hence the name 3.5" drive even though it is physically much bigger. A notebook HDD measures 4" x 2.75" and referred to as a 2.5" drive.

If single drive is installed initially, then 2nd drive is added later. does raid 1 get configured? or does both drive need to be installed together?

I installed one drive initially, and then added a second drive later. The second drive was automatically added as a Raid 1 drive.

Can it be used as a datastore for esxi or backup VMs?

Technically you can but not recommended. You will likely get terrible performance because the CPU and memory is not designed for this use case. 512MB RAM is very low for a datastore. This model is really geared towards traditional file sharing and media streaming. You want something with higher CPU and read/wrtie caching like the DS218/DS218+.

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DS223j

Product ID: 729567595

Details

サイズ
標準品
ブランド
Synology
商品の寸法
226奥行き x 100幅
対応デバイス
デスクトップパソコン
色
単品

🌐1Gbps LAN port for fast network access

💾2-bay design supports up to 36TB storage

🧠Quad-core Realtek CPU for smooth multitasking

3877 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Elevate your digital life with Synology DS223j — your secure, smart, and scalable personal cloud!

SMART MEDIA MANAGEMENT - Organize photos and videos with AI-powered sorting for instant recall and sharing.
PLUG PLAY REMOTE ACCESS - QuickConnect lets you securely connect without complex network setup, perfect for remote work and family sharing.
EFFORTLESS DATA PROTECTION - Advanced snapshot and backup tools keep your data safe from ransomware and accidental loss.
YOUR PERSONAL CLOUD ANYWHERE - Access and manage your data seamlessly from any device, anytime.
MASSIVE STORAGE ZERO COMPROMISE - Supports up to 36TB to consolidate all your files in one secure place.

The Synology DS223j is a beginner-friendly 2-bay NAS equipped with a quad-core Realtek CPU and 1GB RAM, designed for light users seeking a reliable personal cloud solution. It supports up to 36TB of storage, offers fast 1Gbps LAN connectivity, and features Synology's intuitive DSM software for seamless file management, smart media organization, and robust data protection including snapshots and backups. Ideal for professionals and families wanting secure, anywhere access to their data with easy remote connectivity and comprehensive support.

Specifications

ASIN	B0C8814GKB
Amazon 売れ筋ランキング	パソコン・周辺機器 - 7,205位 ( パソコン・周辺機器の売れ筋ランキングを見る ) ネットワーク接続ストレージ（NAS）エンクロージャ - 4位
GTIN (Global Trade Identification Number)	00846504004768
UPC	846504004768
おすすめ度	4.5 5つ星のうち4.5 (838) var
カラー	単品
サイズ	標準品
ブランド名	Synology
メーカー名	Synology
メーカー型番	DS223j
レンズマウントの種類	テーブルトップ
互換デバイス	デスクトップパソコン
保証内容	2年間
品目の寸法（D x W x H）	226奥行き x 100幅 x 165高さ cm
商品の重量	0.87 キログラム
型番	DS223j
組み立て式	はい

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