ASUSTOR LOCKERSTOR 2 Gen2 (AS6702T) two-bay NAS review

The ASUSTOR LOCKERSTOR 2 Gen2 (AS6702T) is a two-bay desktop NAS whose unusual feature is not a larger SATA count but four separate M.2 NVMe positions. That can make sense for a buyer comparing a compact two-disk mirror with optional flash storage, but it is important to keep those storage interfaces distinct. This is a source-based assessment of the exact AS6702T model, not a hands-on test; it does not claim a benchmark, personal ownership, a compatible drive pair, or a particular U.S. retail offer.

Keep the two SATA bays and four M.2 slots separate

ASUSTOR’s product-ID-76 hardware page and current U.S.-English comparison list two 2.5-/3.5-inch SATA bays plus four M.2 2280 NVMe positions. The company describes M.2 use for cache, storage, or a mixture. That is a flexible media layout, not a six-bay SATA enclosure: the finder’s two-bay field counts only the native SATA positions. A separate M.2 pool or cache also has its own compatibility, setup, and cooling questions; it should not be silently folded into a SATA RAID plan.

The manufacturer specification quotes 36 TB of raw internal capacity as two 18-TB HDDs, with a warning that capacity varies by RAID type. Treat that as the manufacturer’s stated configuration basis, not a current approved-drive list or usable space promise. A two-drive mirror duplicates data across its members, so its usable capacity is not the sum of both raw drives, and formatting and filesystem overhead are separate. Check the current compatibility page for the exact drive model and firmware before committing to a layout.

A mirror fills the two native drive positions

The AS6702T’s listed SATA volume choices include RAID 1. A buyer can plan an owner-created two-drive RAID 1 volume using compatible disks, but both native bays are then occupied. There is no third SATA position for a separate in-chassis disk or a hot spare. The four M.2 slots remain a separate option; this assessment does not assert that a particular NVMe model will work in a particular cache or storage arrangement.

RAID 1 can help a volume remain accessible after one member drive fails. It does not undo a mistaken deletion, protect against malware or theft, or replace an independent backup. ASUSTOR’s installation guide also warns that initializing the drives erases existing data. Back up anything important before setup, verify both drive identities and firmware, and maintain a separately restorable copy after the mirror is running.

Its network ceiling is per port, not per pair

The exact model specification lists two individual 2.5-Gigabit Ethernet ports. A 2.5-Gbps floor for one built-in interface is met; a 3-Gbps or 5-Gbps floor for one interface is not. ASUSTOR’s materials discuss SMB Multichannel across multiple compatible links, but aggregation is not one faster jack, and the network path still depends on a capable client, switch, cabling, configuration, storage and workload. No throughput result is measured here.

There is an easy model-family trap: the larger four- and six-bay LOCKERSTOR Gen2 models have an optional 10GbE-card note in the manufacturer comparison, but ASUSTOR’s exact-model-family documentation explicitly says the AS6702T and AS6702T v2 do not support 10GbE. Do not transfer the larger sibling’s expansion capability to this two-bay NAS, and do not confuse this original AS6702T with the separately named AS6702T v2. If a single 10-Gigabit port is essential, this configuration is the wrong fit.

Memory and physical setup need planning

The listed processor is a quad-core Intel Celeron N5105 running at 2.0 GHz with boost up to 2.9 GHz. The standard memory is 4 GB DDR4-2933, with two slots and a 16-GB maximum (2 × 8 GB). The quick guide warns that third-party memory is not guaranteed and advises owners who are unfamiliar with upgrades not to install a module themselves. No specific memory part is assessed here, so verify any upgrade through current manufacturer material rather than buying by form factor alone.

Four M.2 positions sound convenient, but adding a module is not an outside-the-case tray swap: ASUSTOR’s guide says to shut the NAS down, disconnect its cables and power, remove three rear screws, then access the internal board. The SATA trays likewise require suitable screws for the selected drive format. The chassis includes HDMI 2.0b and two USB 3.2 Gen 2 ports (one front, one rear), which may suit local display or peripheral plans, but the connectors do not establish app support or a particular workflow.

What the standard package and reference figures say

The AS6702T package page lists the NAS, quick installation guide, AC cord and adapter, two Cat 5e LAN cables, eight 3.5-inch HDD screws, eight 2.5-inch HDD screws, and a power-cord bracket. It does not list data drives or an initialized array. That describes the manufacturer’s package contents, not every seller bundle; inspect the exact seller listing and ask what is included before comparing a drive-included kit with a bare enclosure.

ASUSTOR publishes a 65-W adapter and reference draw of 21 W in operation, 13.5 W in disk hibernation and 0.79 W in sleep mode. These are manufacturer figures, not measurements from this assessment; actual consumption varies with installed drives and workload. The listed chassis dimensions are 163.5 × 108 × 230 mm (H × W × D) and listed weight is 2 kg. Allow for the attached cables and unobstructed ventilation rather than treating the case measurements as all the space the installation needs.

Where it sits beside related models

Within the LOCKERSTOR Gen2 family, the U.S. comparison lists the AS6704T with four SATA bays and the AS6706T with six, versus two here; all three list four M.2 slots and the N5105, while the six-bay profile starts with 8 GB of memory. The two-bay AS6702T is the smallest native SATA layout, and a two-drive mirror leaves no SATA position open for later use. Choose the larger chassis if additional native SATA slots matter more than the smaller footprint, but check each sibling’s distinct power, memory, network-expansion and package details rather than assuming the models are interchangeable.

The manufacturer support table currently marks AS6702T generally available and supported, with a three-year entry. This is a dated reference to the manufacturer’s model status, not proof that a seller has stock or honors a particular warranty. No exact U.S. seller SKU, active offer, price, bundle, return path or channel warranty was verified. Confirm the label says AS6702T (not AS6702T v2), verify the seller’s terms and exact package, check the model-and-firmware compatibility of each planned disk or SSD, and budget for a separate backup.

Primary references checked 2 November 2026: ASUSTOR’s exact AS6702T product page, hardware specification, package contents, U.S.-English product comparison, applicable AS67XXT installation guide, drive compatibility route, and ASUSTOR’s two-bay 10GbE limitation note. Specifications and support states can change; none of these references establish a current retailer offer.