Synology DS420j Power Supply (12V DC, 100W)
Synology DS420j: 12V DC ⎓ 8.33A (100W) · 4-pin DIN (Kycon KPPX-4P) · Replaces: Adapter 90W_1.
12V DC8.33A / 100Wpins 1+2: +12V · pins 3+4: GNDEU plug
€49,95 incl. VAT
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Shipping via UPS, DPD, Bpost available
Ordered before 14:00 on business days + in stock = shipped the same day.
✓ CE-certified✓ Tested before shipping✓ 2-year warranty✓ 30-day returns✓ Ships from Belgium✓ Exact-spec match
Fits these devices
✓ Synology DiskStation DS420j (DS420j) ✓ Synology DiskStation DS410 (DS410)✓ Synology DiskStation DS412+ (DS412+)✓ Synology DiskStation DS414 (DS414)✓ Synology DiskStation DS415+ (DS415+)✓ Synology DiskStation DS418 (DS418)✓ Synology DiskStation DS916+ (DS916+)✓ Synology DiskStation DS918+ (DS918+)✓ Synology DiskStation DS920+ (DS920+)✓ Synology DiskStation DS923+ (DS923+)✓ Synology DiskStation DS416 (DS416)✓ Synology DiskStation DS416play (DS416play)✓ Synology DiskStation DS416j (DS416j)✓ Synology DiskStation DS418play (DS418play)✓ Synology DiskStation DS413j (DS413j)✓ Synology DiskStation DS414j (DS414j)✓ Synology DiskStation DS411 (DS411)✓ Synology DiskStation DS411j (DS411j)✓ Synology DiskStation DS423 (DS423)✓ Synology DiskStation DS214+ (DS214+)✓ Synology DiskStation DS215+ (DS215+)
Specifications
| Compatible device | Synology DiskStation DS420j (DS420j) |
|---|---|
| Output voltage | 12V DC |
| Output current | 8.33A (100W max) |
| Connector | 4-pin DIN (Kycon KPPX-4P) |
| Polarity | pins 1+2: +12V · pins 3+4: GND |
| Input | 100–240V AC, 50/60Hz |
| Plug type | EU (type C/E/F) |
| Cable length | 1.2 m |
| Certification | CE, RoHS |
| Replaces | Original Synology 12V DC adapter shipped with the DS420j (Adapter 90W_1) |
How to verify this is the right power supply
Check the label on your original Synology adapter. Output voltage: 12V DC · Output current: 8.33A · Connector: 4-pin DIN (Kycon KPPX-4P) · Polarity: pins 1+2: +12V · pins 3+4: GND. If your adapter shows different values, it is not the right model.
Frequently asked questions
Which power supply does the Synology DS420j use?
The DS420j is powered by an external 12V DC adapter (100W). The required connector is 4-pin DIN (Kycon KPPX-4P), polarity pins 1+2: +12V · pins 3+4: GND.
Can I use a power supply with a higher amperage rating?
Yes. The device only draws the current it needs. A higher amperage rating is safe. Never use a higher voltage.
Is this an original Synology power supply?
This is a compatible replacement adapter that meets or exceeds the original specifications, is CE-certified and tested before shipping. It is not manufactured by Synology.