ASUSTOR LOCKERSTOR 16R Pro Gen2 (AS7216RDX) review

Research-based assessment: The ASUSTOR LOCKERSTOR 16R Pro Gen2 (AS7216RDX) combines sixteen native SATA trays with dual built-in 10-GbE links in a 3U chassis. It sits between a 12-bay 2U model and a 24-bay four-row rack system, so the decision is not just whether the CPU looks fast: it is whether the rack, drives, network and operating plan justify sixteen positions. This is a source-based analysis, not a report of ownership or performance testing.

Sixteen positions, with a separate M.2 layer

The exact model selector and datasheet identify sixteen 3.5-inch/2.5-inch SATA positions and one separate M.2 2280 NVMe slot using PCIe 5.0 x4. ASUSTOR's M.2 table lists a Single volume option; that M.2 slot does not add a seventeenth SATA tray and does not provide a two-module mirror. The 3U chassis measures 116 x 439 x 576 mm (height x width x depth) and is listed at 15.3 kg. Add room for the rail kit, cable bends, rack doors, service work and the loaded weight of the drives; the chassis depth alone is not an installation-clearance figure. See the official product page, exact hardware selector and model datasheet.

Expansion totals should not be used as a buying promise. The current selector lists a maximum of 44 bays with an expansion unit, while the exact datasheet page lists 32. The documents disagree, so neither figure is used in the match profile or presented as resolved. The known base count is sixteen. If external storage growth matters, get the exact SAS-card and Xpanstor configuration in writing, then reconcile it against the current compatibility and installation documents.

A meaningful Gen2 change from AS7116RDX

This is not the discontinued 16-bay AS7116RDX with a memory suffix. The two models share a sixteen-position, 3U outline, but the newer AS7216RDX uses an AMD Ryzen 7 PRO 7745, 16 GB of ECC DDR5-4800 memory and two individual built-in 10-GbE ports plus two Gigabit ports. The prior LOCKERSTOR 16R Pro AS7116RDX review documents a Xeon E-2224, 8 GB ECC DDR4 and four individual 1-GbE ports; that model also has two M.2 cache sockets rather than this Gen2 single M.2 volume position. The distinction is useful when comparing exact platform capability, but does not establish a workload result or retailer package.

The AS7216RDX's own selector lists four memory slots and a 192-GB maximum. It also lists two PCIe 5.0 slots—one x8 link and one x4 link—for separately chosen expansion hardware. A faster optional NIC or SAS card must be checked for exact card, bracket, driver, switch, cable and system fit; it is not an included built-in Ethernet interface. Each of the two 10-GbE ports can satisfy a 10-Gbps single-port floor, but the surrounding network and storage workload determine actual transfer behavior.

Sixteen bays do not arrive as a sixteen-disk array

The product sources list RAID 1 among supported volume types. One possible setup is an owner-created mirror from two compatible SATA drives selected by the buyer. It uses two of the sixteen trays and leaves fourteen open while one 10-GbE port carries the NAS link. The exact package reference lists no data drives or prepared array; a diskless listing is not an initialized storage pool. Verify the exact drive model, capacity and firmware on ASUSTOR's current compatibility information before reusing disks or ordering new ones. Initialization may erase existing contents. RAID 1 can mitigate one drive failure, but it is not a second backup copy and does not address deletion, malware, theft or failure of the whole NAS.

Physical and operating cost checks

ASUSTOR lists two redundant 550-W 80 PLUS Platinum supplies. Its exact model selector gives 187 W for operation and 128 W for disk hibernation; the manufacturer's table values are not independent measurements or a forecast for your number of disks, workload or power tariff. If resilience matters, two power modules need separately considered cords, PDU/UPS capacity and upstream circuits. The system's two PSU slots do not demonstrate that your site has independent power.

The manufacturer's package reference names one unit, a quick-install guide, two AC cords, two Cat5e LAN cables, two Cat6a 10GbE cables and 48 screws for each listed drive size. It does not list drives, an initialized array or rack rails. The U.S. Store identity page labels the base configuration diskless under NAS SKU 90-AS7216RX1-MF10; it is not a promise about another seller's add-ons or the condition of a particular unit. Check the exact model, SKU, rail kit, trays, cables, both PSUs, returns, support channel and written warranty terms. The current ASUSTOR status table labels this configuration Generally Available, with software and technical support shown as Supported and five years listed; those entries do not establish current stock or coverage on a specific shipment.

When the 16-bay tier makes sense

Consider this profile when sixteen native SATA positions, ECC-capable memory, built-in dual 10GbE and a rack deployment matter together. The 12-bay AS7212RDX uses less rack height for four fewer positions; the 24-bay AS7224RDX adds eight trays but a taller, heavier chassis and higher manufacturer-listed power figures. That comparison is useful only if those extra bays have a real role. An empty tray has no storage value, and no usable capacity can be calculated until exact drives and the chosen RAID layout are known.

Before ordering, confirm the chassis depth and rail clearance, drive/firmware tuple, network peers, expansion-card plan, seller's exact diskless package and an independent backup destination. The package reference and shared AS72XXRDX installation guide document the model family and rack procedure, not the contents or condition of an individual resale unit.