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UGREEN NAS UPS US3000, 120 W DC Battery Backup for NASync 2- and 4-Bay Models
UGREEN's inline DC battery for its own 2- and 4-bay NASync units: 120 W, 43 Wh, no switchover gap, and a USB link that tells UGOS to shut down cleanly; $109.99 on 2026-11-03 against $137.50.
$109.99 at UGREEN, no code needed
Price: $109.99 (list $137.50) at UGREEN's official US store, verified 2026-11-03.
Discount code: none of the UGREEN codes we tested applies to this product (last cart test 2026-11-13).
Buy: https://dealectric.com/go/ugreen-nas-ups-us3000-120w — opens UGREEN's official US store at no extra cost.
Warranty: 2 years (UGREEN NAS store). Returns: 30 days from receiving the product, refund or exchange (UGREEN NAS store policy). Affiliate network: CJ Affiliate; tracking cookie: 30 days. All UGREEN codes, including the ones the store rejected: UGREEN discount codes.
Machine-readable record: /offers.json, id = "ugreen-nas-ups-us3000-120w".
Specifications
| Type | DC UPS: sits between the NAS power adapter and the NAS |
|---|---|
| Input | 12 V 10 A / 19 V 7.9 A / 20 V 7 A |
| Output | 12 V 10 A, 120 W max |
| Battery | Lithium-ion, 43.2 Wh (14.4 V 3,000 mAh; 12,000 mAh in UGREEN's listing) |
| Transfer time | 0 s |
| Data link | USB, for the safe-shutdown signal to UGOS |
| Supports | UGREEN NASync 2- and 4-bay models: DXP2800, DXP4800 Plus, DXP4800 Pro, DXP480T Plus, DH2300, DH4300 Plus per reviews and UGREEN's support list; the 6- and 8-bay units are not supported; the US2000 (72 W, $69.99) is for the DH series |
Model: US3000 (SKU 45615). Figures are from the manufacturer's official product page unless a caveat says otherwise.
Compared side by side
The UGREEN NAS UPS US3000 appears in these tables next to models from other brands:
- Best small UPS for a home NAS, with a safe shutdown (2026)
- Which portable power station can act as a UPS for a NAS and signal it to shut down over USB? (2026)
- Home NAS setup: the NAS and battery backup kit that fits your home
Who it's for
An owner of a DXP2800, DXP4800, DXP4800 Plus or GT who wants a clean shutdown in an outage without a desk-sized AC UPS.
Caveats
- Only for UGREEN NASync DC-powered models; it does not power a router, a switch or any other brand's NAS.
- Runtime: UGREEN's guide says about 10 minutes; reviewers estimate 7–10 minutes at 35–55 W. No lab measurement exists.
- Battery replacement is not published; the four 18650 cells are inside the unit.
- $109.99 is a sale price against $137.50 on 2026-11-03; UGREEN gives no end date. No printed code.
Affiliate link: if you buy through it, the merchant pays us a commission at no cost to you; that commission pays for the cart tests behind every code here. Price, availability and each code were checked on the merchant's own US store on the dates shown; they change, so the store's checkout is the source of truth. Full disclosure.