UGREEN DXP4800 Plus specs explained: what the numbers mean before you buy

What the numbers mean

Processor: the Intel 8505 runs 6 threads on 5 cores

The manual names the processor as the Intel 8505, and UGREEN’s spec table adds 5 cores and 6 threads. Six threads let the processor run six streams of work at the same moment, which matters once the NAS does more than hand out files, for example serving two computers while a scheduled backup runs.

Memory: 8 GB out of the box, 64 GB means a 32 GB module in each slot

The datasheet states 8 GB of DDR5 installed and a maximum of 64 GB. The manual shows 2 SODIMM slots with 1 module pre-installed. Two slots and a 64 GB ceiling mean the maximum takes 64 ÷ 2 = 32 GB in each slot, so the factory memory comes out. Keeping it and adding one 32 GB module gives 8 + 32 = 40 GB, but UGREEN’s memory note (in the compatibility table below) recommends the same brand and model in both slots. For 64 GB, plan on two identical 32 GB DDR5 SODIMMs from UGREEN’s list.

Bays and M.2 slots: 144 TB raw is not 144 TB usable

The 4 SATA bays take 2.5-inch or 3.5-inch drives, and the 2 M.2 slots take an M.2 NVMe 2280 SSD each; the manual says those SSDs can work as a separate storage pool or a cache. UGREEN’s maximum of 144 TB adds up every slot filled with the largest drive UGREEN supports in it: 4 × 32 TB = 128 TB in the bays, plus 2 × 8 TB = 16 TB of SSD. That is raw space, before RAID takes its share for protection. With four 32 TB drives in the bays, the storage modes the NAS offers work out like this:

These are decimal terabytes, the unit drive makers print, counted before the file system and the NAS software take their own share of the space. An operating system that counts in binary units shows 96 TB as about 87.3 TiB (96 × 10¹² ÷ 2⁴⁰), so the number on screen will look smaller than the table. The M.2 SSDs are not part of these sums: they form their own pool or act as a cache.

Network: what 10GbE and 2.5GbE mean for a copy

The manual lists 1 × 10GbE and 1 × 2.5GbE. Dividing by 8 bits per byte gives the line rate: 10 Gb/s is 1.25 GB/s and 2.5 Gb/s is 312.5 MB/s, before protocol overhead. At line rate, a 100 GB video project copies in 100 ÷ 1.25 = 80 seconds over 10GbE and in 100 ÷ 0.3125 = 320 seconds, more than five minutes, over 2.5GbE. Real copies run slower than line rate, but the ratio holds: the 10GbE port has 10 ÷ 2.5 = 4 times the ceiling of the other port, and you only get it if your computer or switch also has a 10GbE port.

Power: 42.36 W with drives in access, 18.12 W in hibernation

The datasheet rates 42.36 W with drives in access and 18.12 W with drives in hibernation. A full day at each rating is 42.36 W × 24 h = 1.02 kWh and 18.12 W × 24 h = 0.43 kWh. Over a year (365 × 24 = 8,760 hours) that is about 371 kWh at the drive-access rating around the clock and about 159 kWh at the hibernation rating around the clock. These are the two ratings UGREEN publishes, not a forecast: the spec table does not say which drives, or how many, were installed when they were measured, and it gives no figure for drives that are spinning but idle, so the draw with your own drives can be different. The adapter is rated DC 19V/7.9A, which works out to 19 V × 7.9 A = 150.1 W, about 3.5 times the 42.36 W access figure.

Ports: 5 USB ports and 1 HDMI output

The manual counts 1 × USB 3.2 Gen 2, 1 × USB-C USB 3.2 Gen 2, 1 × USB 3.2 Gen 1 and 2 × USB 2.0: 1 + 1 + 1 + 2 = 5 ports. For an external backup drive, use one of the two USB 3.2 Gen 2 ports, the fastest standard on the box; the USB 2.0 ports are the slowest. Video goes out through 1 HDMI port, up to 4K.

System storage: a separate 128 GB SSD

The manual lists a 128 GB SSD as system storage, apart from the 4 bays and the 2 M.2 slots, so you do not give up a bay or an M.2 slot to the system.