ASUSTOR Xpanstor 4 AS5004U 4-Bay USB 3.2 Gen 2 Type-C Expansion Unit DAS for 2.5/3.5 SATA Diskless
Brand: ASUS
ASUSTOR Xpanstor 4 AS5004U 4-Bay USB 3.2 Gen 2 Type-C Expansion Unit DAS for 2.5/3.5 SATA Diskless
€510.44 inc. VAT
90-AS5004U00-M030
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ASUSTOR Xpanstor 4 AS5004U 4-Bay Expansion Unit
Add up to 88TB to your ASUSTOR NAS over USB-C 10 Gbps
4 Bays · 2.5"/3.5" SATAUSB-C 3.2 Gen 2 (10 Gbps)Up to 88TB · MyArchive
The ASUSTOR Xpanstor 4 (AS5004U) is a 4-bay storage expansion unit that adds up to 88 TB of capacity to a compatible ASUSTOR NAS over a fast USB 3.2 Gen 2 Type-C connection, or works as a standalone DAS (direct-attached storage). Supplied under part number 90-AS5004U00-M030 (EAN 4710474831548), it houses four hot-swappable 3.5" or 2.5" SATA drives and connects at up to 10 Gbps (backward compatible with 5 Gbps USB 3.2 Gen 1). A locking, replaceable USB-C cable prevents accidental disconnection, and MyArchive support turns drives into removable cold-storage archives. It ships diskless, so you add your own drives. Typically in stock with fast delivery across Cyprus.
Before you buy: The Xpanstor 4 is a diskless expansion / DAS unit, not a standalone NAS — it has no operating system of its own and holds no drives out of the box. RAID and volume management are handled by the connected ASUSTOR NAS; used as a DAS it presents drives directly over USB. To use it as a NAS expansion, confirm your ASUSTOR model supports USB expansion units in ADM. It accepts 3.5"/2.5" SATA HDDs/SSDs and uses its own 90 W power supply.
Best For
✓Expanding an existing ASUSTOR NAS beyond its bays
✓Adding cold-storage archives with MyArchive
✓High-speed USB-C 10 Gbps direct-attached storage
✓Backup targets and large media libraries
✓Scaling capacity without replacing your NAS
✓Hot-swap drive management
Key Features
Fast USB-C 10 Gbps
USB 3.2 Gen 2 Type-C delivers up to 10 Gbps, and is backward compatible with 5 Gbps USB 3.2 Gen 1 ports on older ASUSTOR NAS units, so your expanded storage stays quick.
Secure Locking Cable
The specially designed USB-C cable screws into the unit on both sides to prevent accidental disconnection, and is non-proprietary and replaceable for greater longevity and less e-waste.
MyArchive Cold Storage
Insert a MyArchive drive into a bay to access data instantly, and schedule backups with automatic mounting and unmounting — ideal for offline 3-2-1 backup rotations.
Quiet, Efficient Cooling
A 120 mm fan automatically adjusts speed to hard-drive temperature, balancing airflow and noise, while the unit sleeps when your NAS sleeps to save power.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
The Xpanstor 4 is the simple answer when your ASUSTOR NAS is running out of bays: instead of migrating to a bigger unit, bolt on four more drives over USB-C. The locking, replaceable cable is a thoughtful touch that avoids the accidental-disconnect risk of ordinary USB DAS boxes. Just remember it relies on the host NAS for RAID and management, so it complements rather than replaces your NAS. Fill it with reliable NAS hard drives, and see the full family of NAS & RAID storage appliances for the matching main unit.
Buyer's Guide
Buy it if
You already own an ASUSTOR NAS and want to add up to 88TB over fast USB-C, or need a simple hot-swap DAS with a secure locking cable.
Skip it if
You need a standalone NAS with its own CPU and apps, or your NAS does not support USB expansion units — buy a full NAS instead.
Also consider
The AS6004U for higher-end ASUSTOR NAS, or a standalone Drivestor / Lockerstor NAS if you need processing too.
Features - ASUS - 90-AS5004U00-M030
Colour
black
Interface
- USB Type-C
- USB3.1
- USB3.0
More Details
Product Code
04:460313
EAN Code
4710474831548
Manufacturer
ASUS