Pros & Cons
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- Speedy performance with tested hard drives, plus option for SSD caching
- Dual 5GbE LAN ports, with link-aggregation support
- Four M.2 slots, also usable as separate, fast storage
- Massive app catalog
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- Drive sleds require tools
- Like most multi-bay NAS units, drives not bundled
Asustor Lockerstor 2 Gen2+ (AS6702T v2) Specs
| Bay Size | 2.5 and 3.5-inch |
| Connection Type | 5GbE (2) |
| Connection Type | HDMI |
| Connection Type | USB 2.0 |
| Connection Type | USB 3.2 (2) |
| External USB Hard Disk Expansion | |
| Hard Disk Configuration | RAID 1 |
| Media Server | |
| Network Medium | Wired |
| Number of Bays | 2 |
| Printer Server | |
| Rack-mount or Standalone | Standalone |
| RAID Level | JBOD |
| RAID Level | RAID 0 |
| RAID Level | RAID 1 |
| RAID Level | single |
| Remote Access | |
| UPnP Capable | |
| Wired Network Speed | 10/100/1000 2.5GbE/5GbE |
When we reviewed the Asustor Lockerstor 2 Gen2 (AS6702T) back in 2022, it earned our Editors’ Choice award for its speedy performance and excellent feature set—including dual 2.5GbE LAN ports, four M.2 SSD slots, and a beefy app catalog. The new Lockerstor 2 Gen2+ (AS6702T v2) delivers the same stellar performance and adds some tantalizing features, including two 5GbE ports and an extra USB port. Moreover, at $469.99, it’s more affordable. All this earns the AS6702T v2 our Editors’ Choice award for two-bay NAS devices for power users.
Design and Features: Nondescript Box, High-Bandwidth Ports
The AS6702T v2 uses the same sedate-looking chassis as the AS6702T original and the AS6602T. The gray-and-black enclosure measures 6.4 by 4.2 by 9.0 inches (HWD) and has two hot-swappable drive bays on the front, along with LED indicators for power, USB and LAN activity, and system status.
(Credit: Joseph Maldonado)The removable drive sleds have drive-activity LEDs and can be locked to prevent unwanted access, but they don’t offer tool-free snap-in drive rails. Instead, you’ll have to use some included screws to secure the drives. The front of the enclosure also has a power button, a One-Touch Backup button, and a 10Gbps Type-A USB 3.2 port.
The rear panel houses that pair of 5GbE LAN ports I mentioned. (They support link aggregation for 10Gbps connectivity.) Also back there, I spotted a second 10Gbps Type-A USB 3.2 port, an HDMI 2.0 port, a power port, a reset button, and a Type-A USB 2.0 port for devices like printers that don’t require a high-speed connection. A single 70mm fan prevents internal components from overheating.
(Credit: Joseph Maldonado)Under the hood, the AS6702T v2 packs a 2.0GHz Intel Celeron N5105 CPU, 4GB of DDR4 RAM (expandable to 16GB), and 8GB of eMMC storage. As with the first AS6702T, the unit has four M.2 slots that you can fill with up to 32TB of SSD storage (as four 8TB M.2 drives) for fast caching or simply as extra high-speed storage.
As for the drives themselves, the unit supports 64TB of hard-drive storage (as two 32TB 3.5-inch platter drives) and accommodates 3.5-inch or 2.5-inch drives. If you need more capacity than that, you can add two AS5004U expansion units. Each of these supplemental boxes can accommodate up to four 26TB drives for a total of 208TB of additional storage. You can configure the system for Single, JBOD, RAID 0, or RAID 1, and it supports EXT4 and Btrfs file systems. When using M.2 SSDs, the NAS will also support RAID 5, RAID 6, and RAID 10 configurations.
Software: A Quick Look at the ADM OS
The AS6702T v2 uses the Asustor Data Master (ADM) operating system. I spent some time navigating it; you interact with it using a web-based application with a Windows-like desktop interface. The desktop comes pre-populated with 16 tiles for easy access to items like system settings, application downloads, backup utilities, storage management, and resource monitoring.
(Credit: Asustor)I clicked on the Access Control tile, which opens a screen where you can manage local users and groups, add and remove shared folders, and set app privileges. The Settings tile led to nested screens to configure network settings, hard disk hibernation, and notifications, as well as to enable LED indicators and buzzers.
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(Credit: Asustor)The ADM Defender tile opens a screen where you can configure preset and custom firewall profiles, monitor network-transmission packets, and create a list of trusted IP addresses. Storage Manager is where you go to create drive volumes, configure RAID, and check drive health, while File Explorer lets you browse and manage files on the NAS.
When I tapped on Activity Monitor, I could view charts for parameters such as network traffic, and the utilization levels for the NAS drive's CPU, storage, and memory. I found the main action at App Central, though. That's the main Asustor "store," which offers 256 downloadable programs. I saw a ton of variety there; the many apps cover using the NAS for tasks such as digital entertainment streaming and storage, e-commerce, cloud server duties, website development and hosting, and content management.
Installation and Setup: Screw 'Em In, Start It Up
The AS6702T v2 is easy to set up, but, as mentioned, I needed a screwdriver to secure the drives to the drive sleds. Asustor includes mounting screws. I went with a pair of 10TB Seagate IronWolf drives, then connected the NAS to a 2.5GbE switch that was also connected to my desktop PC’s 10GbE LAN port and to my router.
(Credit: Joseph Maldonado)After powering on the NAS, I opened a web browser on my desktop PC and navigated to acc.asustor.com. From there, I downloaded and ran the Asustor Control Center software, which immediately recognized the NAS. I tapped the Uninitialized button next to the device name, launched the ADM operating system, and selected 1-Click Setup. (I did it the easy way; you can manually configure the NAS, if you prefer.)
Then came the final steps: creating an account, entering my storage preferences (balanced, maximum capacity), and selecting Btrfs as my file system. The balanced-storage selection yielded 9.09TB of storage space in a RAID 1 configuration. I tapped Initialize, and after 13 hours, the drives were synchronized and ready for testing. If you have similar-sized drives or larger ones, start the setup and go to work, or to bed.
Performance Testing: Fast Transfers With Platter Drives
To measure file-transfer performance, I time the read and write speeds while transferring a 4.9GB folder containing a mix of music, video, photo, and office document files between the NAS and a desktop PC connected to the same network.
The AS6702T v2 provided the best all-around performance in this test group, scoring 245MBps on both the write and read tests.
The TerraMaster F2-425 Plus and the Ugreen DXP2800 both hit 245MBps on the write test, too, but posted read scores of just 188MBps. Meanwhile, the QNAP TS-216G scored 233MBps on the write test and 196MBps on the read test.