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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Synology NASキット 2ベイ DS223j クアッドコアCPU搭載 1GBメモリ搭載ライトユーザー向け国内正規代理店フィールドレイク取扱品電話サポート対応品 DiskStation

Product ID: 729567595

Details

サイズ
165 mm x 100 x
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
ホワイト

⚡Quad-core Realtek CPU for smooth multitasking

🌐1Gbps LAN port for fast network access

💾2-bay HDD slots for up to 36TB storage

S$476

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Description

🚀 Own your data universe with Synology DS223j — where storage meets smart simplicity!

ROBUST PERFORMANCE - Quad-core CPU and 1GB RAM ensure smooth file sharing and media streaming.
SMART DATA PROTECTION - Advanced snapshot and backup tools safeguard your files from ransomware and accidental loss.
EFFORTLESS PRIVATE CLOUD - Access and manage your data anytime, anywhere with seamless multi-device sync.
MASSIVE STORAGE POTENTIAL - Expand up to 36TB with dual bays—perfect for your growing digital life.
PLUG PLAY REMOTE ACCESS - QuickConnect lets you securely reach your NAS without complex network setup.

The Synology DS223j is a beginner-friendly 2-bay NAS equipped with a quad-core Realtek CPU and 1GB RAM, supporting up to 36TB of storage. Designed for light users, it offers secure, multi-device access to your personal cloud, advanced data protection features like snapshots and backups, and easy remote connectivity via QuickConnect. Ideal for managing and sharing files, photos, and videos across devices with professional-grade reliability and simplicity.

Specifications

ASIN	B0C8814GKB
Amazon 売れ筋ランキング	パソコン・周辺機器 - 8,415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 - 5位
GTIN (Global Trade Identification Number)	00846504004768
UPC	846504004768
おすすめ度	4.5 5つ星のうち4.5 (830) var
カラー	ホワイト
サイズ	165 mm x 100 mm x 225.5 mm
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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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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S$476

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to SINGAPORE.

Secure transaction

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Fast, free shipping, member pricing & priority support.

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TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

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Synology NASキット 2ベイ DS223j クアッドコアCPU搭載 1GBメモリ搭載 ライトユーザー向け 国内正規代理店フィールドレイク取扱品 電話サポート対応品 DiskStation

Details

Details

Description

Specifications

Common Questions

Synology NASキット 2ベイ DS223j クアッドコアCPU搭載 1GBメモリ搭載ライトユーザー向け国内正規代理店フィールドレイク取扱品電話サポート対応品 DiskStation