
Buffalo LinkStation LS720
Score: 59/100
Asustor AS6704T
Score: 79/100Rankings

The Asustor Lockerstor 4 Gen2 (AS6704T) is a high-performance 4-bay NAS aimed at power users and small businesses, offering up to 88 TB raw capacity, extensive RAID options, dual 2.5 GbE networking and four M.2 NVMe slots. It delivers fast file transfers and 4K media handling, though it lacks native 10 GbE and requires tools for drive installation.

The Buffalo LinkStation 720 is a 2-bay NAS that ships with drives pre-configured in RAID 1, offering simple plug-and-play storage with 2.5 GbE and basic backup features.
| Attribute | ![]() | ![]() |
|---|---|---|
16 TB | 88 TBbest | |
2 | 4best | |
2.5 Gbpsbest | 2.5 Gbpsbest | |
6best | 4 | |
2 GB | 4 GBbest | |
| ↓ lower better | 48 W | 35 Wbest |
| ↓ lower better | — | 17.6 dBbest |
2 years | 3 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
CPU Cores | 6 | 4 |
System Memory (GB) | 2 GB | 4 GB |
Power Consumption (Active) (W) | 48 W | 35 W |
Build & Design(2) | ||
Weight (kg) | 2.31 kg | 3.5 kg |
Warranty Period (years) | 2 years | 3 years |
Connectivity(1) | ||
USB Ports | 3 | 2 |
Storage & Capacity(4) | ||
Maximum Raw Capacity (TB) | 16 TB | 88 TB |
Drive Bays | 2 | 4 |
RAID Support | RAID 0, RAID 1, JBOD | Single, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 |
Supported Drive Types | SATA III 3.5" HDD | 3.5"/2.5" SATA HDD/SSD |

Products in the top-left offer the best value (high score, low price).

Reviewers commend its plug-and-play simplicity and solid transfer speeds, but note the lack of an app ecosystem and limited advanced features.
Users love the quick setup and RAID-1 reliability, while some complain about fan noise and limited extensibility.

“"Preinstalled drives with RAID 1 redundancy out of the box"”

“"The fan can be "sometimes noisy""”

“"Getting the NAS operational in under 15 minutes"”



Professional reviewers rate the AS6704T extremely highly, with PCMag giving it a perfect 5.0/5.0 "Exemplary" score for its blazing speeds, robust hardware and extensive app library.
Everyday users love the AS6704T's raw performance, flexible M.2 and 2.5 GbE options, and the breadth of apps that let them run Plex, Docker and VMs with ease.