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Synology DS223j

Ranked #22 of 22 in Best Compact NAS (1–3 Bays, 2026). Here is every spec we scored, where it came from, and how it compares.

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#22

Synology DS223j

Best for: 2 official bays, 1 GB official installed memory, 1GbE official onboard Ethernet, 4-core official CPU

0.8/10

What we like

  • Official specification table publishes the scored memory, Ethernet, CPU and bay figures we use

Watch out for

  • Fastest official onboard Ethernet on the table we used is 1GbE
  • Official installed system memory is 1 GB
  • Official table we used does not list a maximum expandable memory capacity
  • Official table lists a single onboard Ethernet port

Score breakdown

Installed system memory 28%
Fastest official onboard Ethernet 26%
Official CPU core count 24%
Official onboard Ethernet ports 22%
Installed system memory1 GB
Fastest official onboard Ethernet1 Gbps
Official CPU core count4
Official onboard Ethernet ports1
Drive bays (official table)2 official bays — 2 × 3.5" SATA HDD or 2.5" SATA SSD
Installed system memory (official table)1 GB DDR4 non-ECC
Maximum memory capacity (official table)Not listed
Memory type (official table)Official installed memory is listed as non-ECC
CPU (official table)Realtek RTD1619B
Official CPU core count4
Official CPU thread count4
Fastest official onboard Ethernet1 Gbps
Official onboard Ethernet port count1
Official onboard Ethernet rows1 × official 1GbE (RJ-45 1GbE LAN Port: 1)
Aggregate official onboard Ethernet (computed)1 Gbps, computed as the sum of official onboard port count × official port speed from the published LAN rows (1 × official 1GbE (RJ-45 1GbE LAN Port: 1))
Form factor (official table or official model family)desktop
Hot-swappable drives (official table)-
Dimensions (official table)165 mm × 100 mm × 225.5 mm
Weight (official table)0.88 kg
Power supply (official table)60 watts
Hardware Encryption Engine (official table)YES
USB 3.2 Gen 1 Port (official table)2
Noise Level (official table)18.2 dB(A)
Wake on LAN / WAN (official table)YES
Power Consumption (official table)16.31 watts (Access) / 4 watts (HDD Hibernation)
PriceCheck price

Synology DS223j head-to-head

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5.3/10
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QNAP TS-364
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3.7/10
#6 · 2 official bays, 4 GB official installed memory, 2.5GbE official onboard Ethernet, 4-core official CPU
ASUSTOR LOCKERSTOR 2 Gen2 (AS6702T)
3.7/10
#7 · 2 official bays, 4 GB official installed memory, 2.5GbE official onboard Ethernet, 4-core official CPU
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3.7/10
#8 · 2 official bays, 4 GB official installed memory, 2.5GbE official onboard Ethernet, 4-core official CPU
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3.0/10
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#12 · 2 official bays, 4 GB official installed memory, 2.5GbE official onboard Ethernet, 2-core official CPU
ASUSTOR DRIVESTOR 2 Pro Gen2 (AS3302T v2)
2.2/10
#13 · 2 official bays, 2 GB official installed memory, 2.5GbE official onboard Ethernet, 4-core official CPU
ASUSTOR AS5202T
2.1/10
#14 · 2 official bays, 2 GB official installed memory, 2.5GbE official onboard Ethernet, 2-core official CPU
Synology DS224+
1.9/10
#15 · 2 official bays, 2 GB official installed memory, 1GbE official onboard Ethernet, 4-core official CPU
ASUSTOR DRIVESTOR 2 Gen2 (AS1202T)
1.8/10
#16 · 2 official bays, 1 GB official installed memory, 2.5GbE official onboard Ethernet, 4-core official CPU
QNAP TS-133
1.2/10
#17 · 1 official bay, 2 GB official installed memory, 1GbE official onboard Ethernet, 4-core official CPU
QNAP TS-233
1.2/10
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1.2/10
#19 · 2 official bays, 2 GB official installed memory, 1GbE official onboard Ethernet, 4-core official CPU
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#20 · 2 official bays, 1 GB official installed memory, 1GbE official onboard Ethernet, 4-core official CPU
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#21 · 1 official bay, 1 GB official installed memory, 1GbE official onboard Ethernet, 4-core official CPU