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 DiskStation DS223J Network Storage Drive (White)

Product ID: 595837483

Details

Brand
Synology
Colour
White
Material
Acrylonitrile
Product dimensions
16.5D x 10W x
Size
2-Bay

🌐Multi-platform remote access

🔒100% data ownership & private cloud

🛡️Comprehensive data backup & protection

R$5463

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Description

🚀 Elevate your digital workspace with Synology’s secure, seamless storage solution!

OWN YOUR DATA ALWAYS - Secure private cloud ensures your files stay yours, accessible only by you.
PEACE OF MIND WARRANTY - Enjoy a 3-year warranty backed by Synology’s trusted support and resources.
ACCESS ANYWHERE ANYTIME - Seamlessly sync and share across Android, iOS, Windows, and macOS devices.
EFFORTLESS COLLABORATION - Keep clients and colleagues in sync with easy file sharing and real-time updates.
ROCK SOLID DATA PROTECTION - Back up your entire media library or documents to multiple destinations with confidence.

The Synology DiskStation DS223J is a sleek 2-bay NAS device designed for professionals seeking secure, private cloud storage with multi-platform access. It offers robust data protection, effortless file sharing, and syncing capabilities across Android, iOS, Windows, and macOS. Compact and lightweight, it comes with a 3-year warranty and comprehensive support, making it an essential tool for managing and safeguarding your digital assets.

Specifications

ASIN	B0C8814GKB
Best Sellers Rank	33,052 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 26 in Network Attached Storage (NAS) Enclosures
Box Contents	1 x Main Unit, 1 x Accessory Pack, 1 x Quick Installation Guide
Brand Name	Synology
Colour	White
Compatible Devices	Android Phone, Windows PC, iPhone, macOS
Customer Reviews	4.5 4.5 out of 5 stars (844)
Enclosure Material	Acrylonitrile Butadiene Styrene (ABS)
Global Trade Identification Number	00846504004768
Is Assembly Required	Yes
Item Dimensions D x W x H	16.5D x 10W x 22.6H centimetres
Item Type Name	NAS
Item Weight	0.87 Kilograms
Manufacturer	Synology
Manufacturer Part Number	DS223j
Model Number	DS223j
Mounting Type	Tabletop
Number of Items	1
Product Warranty	3 Years
Size	2-Bay
UPC	846504004768

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R$5463

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered 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 Brazil.

Secure transaction

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