UGREEN NASync DXP4800: capacity calculator
By Devin Chua · Data checked by Owen Nakamura · Updated In the UGREEN NASync DXP4800 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: 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
The frugal version of the DXP4800 Plus: the same four-bay build, but the N100 instead of the Pentium and two 2.5-gigabit ports instead of 10GbE. For file storage and backup that is plenty; the 16 GB RAM ceiling is the real limit.
The DXP4800 at a glance
| Bays | 4 × 3.5-inch and 2.5-inch SATA |
|---|---|
| Maximum raw capacity | 136 TB Manufacturer figure based on 30 TB drives; correspondingly more with 32 TB drives |
| Processor | Intel N100 (4 cores) |
| Memory | 8 GB stock, DDR5 SO-DIMM (2 slots) 16 GB official (the N100 platform limit). 32 GB modules are certified by memory vendors but not endorsed by UGREEN. |
| M.2 NVMe | 2 slots 2 × M.2 NVMe, usable as cache or as their own storage pool |
| Network | 2 × 2.5GbE (link-aggregable to 5 Gbit/s) |
| 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 capacity
UGOS Pro has no flexible RAID like Synology's SHR. Put one 16 TB drive with three 8 TB drives in the DXP4800 and it counts 8 TB per drive — eight terabytes sit idle. So buy matched drives for the DXP4800, 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's 4 bays?
With 4 bays the DXP4800 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.
Which drives belong in the DXP4800?
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 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 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 support?
UGOS Pro offers Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 on the DXP4800. There is no flexible RAID like Synology's SHR here, so mixed drive sizes cost the DXP4800 real capacity — every drive counts only as much as the smallest in the array.
Can I put third-party drives in the DXP4800?
Open. UGREEN mandates no drive brand. The compatibility list is a recommendation, not a lock.
How much memory does the DXP4800 take?
It ships with 8 GB (DDR5 SO-DIMM (2 slots)). 16 GB official (the N100 platform limit). 32 GB modules are certified by memory vendors but not endorsed by UGREEN. 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)