The Internals

We decided against doing a full teardown of the NASync DXP4800 Plus, partially due to everything that needs to be user accessible is, via the hatch in the bottom of the device, but also due to Ugreen being quite open regarding the specs of the hardware used. With that said, we're going to take a closer look at what's hiding inside the chassis, starting with the hatch.


Under the hatch is a pair of DDR5 SO-DIMM slots, of which one is occupied by an 8 GB Samsung DDR5-4800 module. This makes it easy to upgrade to 16 GB if needed and a total of 64 GB of RAM is supported by the DXP4800 Plus. The two M.2 connectors support NVMe SSDs, although Ugreen doesn't specify if the slots support PCIe 3.0 or PCIe 4.0. Note that only 2280 drives are supported, unless some form of mechanical adapter is used to extend the length of the drives.

Rather unusually, this compartment also hides a 3-pin UART header as well as a 4-pin header labelled JMCU1. We should also note that the lid to the memory and M.2 SSD compartment acts as the heatsink for the M.2 drives and this is where the included thermal pads come in play, as they should be attached to the SSDs before the lid is put back on. The lid is spring-loaded in one corner, which makes it pop out as soon as you remove the screw nearest to the mechanism.

The CPU powering the NASync DXP4800 Plus is the Pentium Gold 8505, a mobile 12th gen Intel CPU which falls in the Alder Lake family of chips. What makes this CPU stand out from the crowd is its single performance core which is paired with four efficiency cores for a total of six threads. The maximum clock speed of the performance core is 4.4 GHz with the efficiency cores topping out at 3.3 GHz. The Pentium Gold 8505 has a base power of 15 W and a maximum turbo power of 55 W. This means that the NASync DXP4800 Plus won't be the most energy efficient NAS out there, but the specs suggest that it should have a good tradeoff between power and performance.

The specs of the Pentium Gold 8505 also suggests that the HDMI port should support HDMI 2.1, but this depends on Ugreen's implementation. As this CPU has a basic GPU with support for Intel Quick Sync Video, we will hopefully see accelerated video transcoding from software with support for it. Finally, there's support for Thunderbolt 4, but Ugreen hasn't implemented it on this model. It appears that Ugreen has reserved Thunderbolt 4 support for its higher-end models, which makes sense from a SKU differentiation factor, but it's disappointing nonetheless considering it's natively supported by the CPU.

The 10 Gbps Ethernet controller is a Marvell/Aquantia AQtion AQC113, whereas the 2.5 Gbps chip is an Intel I226-V (rev 08).


As already mentioned, there's support for up to four SATA drives of which all are connected via an ASMedia ASM1164 4-port SATA controller. Ugreen officially supports SATA drives up to 22 TB across the board of its new NAS devices, as well as up to 4 TB NVMe drives.

Disk Configuration

While on the topic of storage we should mention that unlike most of its competitors, Ugreen doesn't install the operating system on the storage drives from an internal USB DOM. Instead, Ugreen has put a 128 GB SSD in the NASync DXP4800 Plus and up, whereas the lower-end models get to make do with 32 GB of eMMC for the operating system. This reduces the boot times and makes the operating system a lot more responsive and this is something we'd like to see the competition implement as well. We were unable to identify the specific SSD used, but it was based on a Phison E13 DRAM-less controller.

Below is the output from the lsblk command on Linux, which shows the disk configuration.

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 3.6T 0 disk
├─sda1 8:1 0 15.3G 0 part
│ └─md0 9:0 0 15.2G 0 raid1 /rootfs
└─sda2 8:2 0 3.6T 0 part
└─md1 9:1 0 3.6T 0 raid1
└─ug_2F9066_1713442563_pool1-volume1 253:0 0 3.6T 0 lvm /home
/volume1
sdb 8:16 0 3.6T 0 disk
├─sdb1 8:17 0 15.3G 0 part
│ └─md0 9:0 0 15.2G 0 raid1 /rootfs
└─sdb2 8:18 0 3.6T 0 part
└─md1 9:1 0 3.6T 0 raid1
└─ug_2F9066_1713442563_pool1-volume1 253:0 0 3.6T 0 lvm /home
/volume1
sdc 8:32 0 3.6T 0 disk
├─sdc1 8:33 0 15.3G 0 part
│ └─md0 9:0 0 15.2G 0 raid1 /rootfs
└─sdc2 8:34 0 3.6T 0 part
└─md1 9:1 0 3.6T 0 raid1
└─ug_2F9066_1713442563_pool1-volume1 253:0 0 3.6T 0 lvm /home
/volume1
sdd 8:48 0 3.6T 0 disk
├─sdd1 8:49 0 15.3G 0 part
│ └─md0 9:0 0 15.2G 0 raid1 /rootfs
└─sdd2 8:50 0 3.6T 0 part
└─md1 9:1 0 3.6T 0 raid1
└─ug_2F9066_1713442563_pool1-volume1 253:0 0 3.6T 0 lvm /home
/volume1
nvme1n1 259:0 0 119.2G 0 disk
├─nvme1n1p1 259:1 0 256M 0 part /boot
├─nvme1n1p2 259:2 0 2G 0 part
├─nvme1n1p3 259:3 0 10M 0 part /mnt/factory
├─nvme1n1p4 259:4 0 2G 0 part /rom
├─nvme1n1p5 259:5 0 2G 0 part
├─nvme1n1p6 259:6 0 4G 0 part /ugreen
└─nvme1n1p7 259:7 0 109G 0 part /overlay
nvme0n1 259:8 0 476.9G 0 disk
├─nvme0n1p1 259:9 0 15.3G 0 part
│ └─md0 9:0 0 15.2G 0 raid1 /rootfs
└─nvme0n1p2 259:10 0 461.7G 0 part

Installing Drives

When it comes to installing drives, you simply press the black part of the drive caddies to pop the lever out and pull out the caddies.


The drive caddies are made largely out of plastic, but feel fairly robust. The only complaint is that the pegs that hold the drives in place don't feel that strong, but it's not as if one would be swapping out the drives on a daily basis on most use cases of a NAS, and hopefully Ugreen will offer extra drive caddies for those that want to be able to rotate drives for backup purposes.


Installing drives into the caddies is pretty straightforward, as there's a latch on the bottom of each caddy that allows the side to slide outwards to allow for the drive to be inserted. It's a little fiddly to align the holes on the drives with the pegs on the caddy, but it's par for course when it comes to these types of implementation. The sliding part is then slid back, and the drive is locked in place. If 2.5-inch drives are used, these need to be screwed in place using the included screws.

The Power Adapter

Finally we have the external 19 Volt power brick, which is rated at 7.9 A and 150.1 W. The OEM is HuntKey, a well known power supply manufacturer, the power adapter is safety tested and certified.