UGREEN NASync DXP4800 Plus: capacity calculator
By Devin Chua · Data checked by Owen Nakamura · Updated In the UGREEN NASync DXP4800 Plus with 4 × 8 TB in RAID 5 you keep 21.83 TiB usable (24 TB in drive-maker terms), surviving 1 drive failing. The calculator below is preset to the 4 bays and the RAID types UGOS Pro actually offers on this model (there is no SHR equivalent here), with the cost to fill in Canadian dollars from live Amazon.ca prices.
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Preset for the DXP4800 Plus: 4 bays, and only the RAID types this model actually supports.
RAID 1 (Mirroring)
That is 8 TB the way drive makers label capacity. Your NAS shows you the smaller number because it counts in powers of two.
Drives: from CA$2,016 for 4 × 8 TB (CA$63.01/TB overall)
What to know about the DXP4800 Plus
The model putting Synology under pressure: 10-gigabit networking out of the box, up to 64 GB of RAM, four bays. To actually saturate the 10GbE link you need four quick CMR drives here or the NVMe cache, otherwise the drive is the limit, not the network.
The DXP4800 Plus at a glance
| Bays | 4 × 3.5-inch and 2.5-inch SATA |
|---|---|
| Maximum raw capacity | 144 TB 4 × 32 TB hard drives plus 2 × 8 TB NVMe, per the manufacturer |
| Processor | Intel Pentium Gold 8505 (5 cores, 6 threads) |
| Memory | 8 GB stock, DDR5 SO-DIMM (2 slots) 64 GB per the manufacturer |
| M.2 NVMe | 2 slots 2 × M.2 NVMe, usable as cache or as their own storage pool |
| Network | 1 × 10GbE and 1 × 2.5GbE |
| RAID types | Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 |
| Third-party drives | unrestricted Open. UGREEN mandates no drive brand. The compatibility list is a recommendation, not a lock. |
No SHR: mixed drive sizes cost the DXP4800 Plus capacity
UGOS Pro has no flexible RAID like Synology's SHR. Put one 16 TB drive with three 8 TB drives in the DXP4800 Plus and it counts 8 TB per drive — eight terabytes sit idle. So buy matched drives for the DXP4800 Plus, or work the loss out in the calculator above before you commit to this model; the "unused" figure shows exactly how much you would lose.
RAID 5 or RAID 6 across the DXP4800 Plus's 4 bays?
With 4 bays the DXP4800 Plus gives you the choice. RAID 5 (or SHR) leaves 3 of 4 drives as usable capacity and survives one failure; RAID 6 spends one more drive for two. The rule of thumb: from 16 TB drives up, the rebuild after a failure runs so long — easily a full day — that a second failure in that window stops being theoretical. That is when RAID 6 earns its cost on the DXP4800 Plus.
Which drives belong in the DXP4800 Plus?
CMR NAS drives rated for 24/7 use — Seagate IronWolf, WD Red Plus, Toshiba N300 or their Pro variants. Our drive picks for the DXP4800 Plus with live prices show which of those currently offers the best capacity per dollar. If you are working back from a target capacity instead, the drive-count calculator works out how many drives you need.
Frequently asked questions
How much storage is left in the DXP4800 Plus with 4 × 8 TB?
About 21.83 TiB usable — 24 TB in drive-maker terms — computed in RAID 5, the sensible default for this model. It survives 1 drive failing. The gap from the 32 TB raw goes to parity.
Which RAID types does the DXP4800 Plus support?
UGOS Pro offers Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 on the DXP4800 Plus. There is no flexible RAID like Synology's SHR here, so mixed drive sizes cost the DXP4800 Plus real capacity — every drive counts only as much as the smallest in the array.
Can I put third-party drives in the DXP4800 Plus?
Open. UGREEN mandates no drive brand. The compatibility list is a recommendation, not a lock.
How much memory does the DXP4800 Plus take?
It ships with 8 GB (DDR5 SO-DIMM (2 slots)). 64 GB per the manufacturer There are 2 slots.
Why does my NAS show less than the calculator says?
Because the maker and the OS count differently. A drive maker calls one trillion bytes a TB; the NAS counts in powers of two and calls that a TiB — about 9 percent less. That is why this calculator leads with the TiB figure: it is the number you will read off the screen.
Devin Chua works out which drives, RAM and NVMe cache fit which NAS model at nasdrives.ca, and what the RAID choice means for usable capacity, checked against what is in stock on Amazon.ca.
Data checked by Owen Nakamura, Technical editor (data checking)