Head-to-head · Best 4-Bay NAS Drives

Asustor Lockerstor 4 Gen3 (AS6804T) vs Synology DS923+

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Asustor Lockerstor 4 Gen3 (AS6804T) comes out ahead by a narrow margin (4.2 vs 4.0). Asustor Lockerstor 4 Gen3 (AS6804T) is best for: Power users and creative pros who need maximum throughput, multi-10GbE networking and an all-flash pool in a 4-bay. Read the strengths below before deciding.

Higher ratedRanked #3 in Best 4-Bay NAS Drives

Asustor Lockerstor 4 Gen3 (AS6804T)

4.2

3 sources$1,517.99as of Oct 11

The Asustor Lockerstor 4 Gen3 (AS6804T) is the no-compromise power-user pick, with an AMD Ryzen V3C14, ECC DDR5, dual 10GbE plus dual 5GbE, USB4, and four M.2 slots. TechRadar measured 3.1–3.5 GB/s using both 10GbE ports and USB4 together. The catch is the $1,299 diskless price, which TechRadar called a tough pill when capable 4-bays cost around $800 less.

Strengths

— Dual 10GbE plus dual 5GbE ports for up to 30GbE of bandwidth
— Two USB4 Type-C ports at up to 40Gbps for Thunderbolt storage
— Four M.2 NVMe slots for cache or an all-flash pool

Watch-outs

— Total cost climbs fast once you add drives and SSDs
— Overkill for typical home file-storage and backup needs
— Expansion units add further significant cost

$1,517.99 · Check Price on Amazon Full review →

Ranked #4 in Best 4-Bay NAS Drives

Synology DS923+

4.0

2 sources

The Synology DS923+ remains the safe default 4-bay NAS thanks to DSM, the most mature operating system in the category, and a deep app ecosystem. StorageReview measured strong RAID-5 throughput and sustained 1,000+ MB/s once a 10GbE module is added. Its weak spots are dated networking (dual 1GbE stock) and a modest CPU, but for households who want it to just work, it is still the most recommended pick.

Strengths

— Deep, well-supported app library for backup, sync, photos and surveillance
— Two built-in M.2 NVMe slots for SSD caching or a storage pool
— Expandable to 9 bays via the DX517 expansion unit

Watch-outs

— Ships with only dual 1GbE ports; 2.5GbE rivals beat it out of the box
— AMD Ryzen R1600 is an older, modest dual-core CPU
— NVMe storage-pool support is limited to Synology-branded drives

Check Price on Amazon Full review →

How they stack up

Asustor Lockerstor 4 Gen3 (AS6804T)

The Lockerstor 4 Gen3 is the performance king, with a stronger CPU and far more networking (dual 10GbE + dual 5GbE) than the UGREEN NASync DXP4800 Plus, Synology DS923+, QNAP TS-464 or TerraMaster F4-424 Pro. Its price is also more than double theirs, so it only makes sense when you genuinely need the throughput.

Synology DS923+

The DS923+ wins on software maturity over the UGREEN NASync DXP4800 Plus and QNAP TS-464, but its stock dual 1GbE networking trails the 2.5GbE on the QNAP and TerraMaster F4-424 Pro and the 10GbE on the UGREEN and Asustor Lockerstor 4 Gen3. Its CPU is older and weaker than every rival here.

Specs side-by-side

Spec	Asustor Lockerstor 4 Gen3 (AS6804T)	Synology DS923+
Bays	4	4 (expandable to 9 via DX517)
CPU	AMD Ryzen V3C14 with ECC support	AMD Ryzen R1600 dual-core, up to 3.1 GHz
RAM	16GB DDR5-4800 ECC (max 64GB)	4GB DDR4 ECC (max 32GB)
Network	2x 10GbE + 2x 5GbE	2x 1GbE (optional 10GbE module)
NVMe	4x M.2 slots	2x M.2 2280 slots
USB	2x USB4 Type-C (40Gbps)	—
OS	Asustor ADM	Synology DSM
Ports	3x USB-A 3.2 Gen 2	2x USB 3.2, 1x eSATA
Max Raw Capacity	—	88TB (4x 22TB)
Dimensions	—	6.54"D x 7.83"W x 8.78"H
Material	—	Plastic Metal

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