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WD My Cloud EX4100 4-Bay NAS Enclosure
Price includes warranty
Western Digital
Product Specification
| Bay Count | 4-Bay |
| Drive Support | 3.5" SATA HDD Drives |
| RAID Support | RAID 0 / 1 / 5 / 10 |
| Connectivity | Gigabit Ethernet |
| Management Interface | Web Based Management Interface |
| Included Drives | No Drives Included |
Refurbished · Tested
Western Digital My Cloud EX4100 4-bay NAS enclosure, SKU NAS-WD-EX4100-4BAY, for centralised network storage, backup and file sharing.
The Western Digital My Cloud EX4100 is a four-bay network attached storage enclosure from the WD My Cloud range, supplied refurbished as SKU NAS-WD-EX4100-4BAY. It takes four 3.5 inch SATA hard drives, connects to the network over Gigabit Ethernet and is administered through a web-based management interface. RAID 0, 1, 5 and 10 are supported, so the four bays can be arranged for maximum capacity, full mirroring or a balance of the two. The unit ships without drives. That suits buyers in Doha and across Qatar who already hold suitable disks, or who prefer to choose capacity and drive model themselves. Typical buyers are small offices and home offices that need one shared location for documents and a dependable target for PC and server backups, without the cost, noise and rack space of a full storage server.
NAS-WD-EX4100-4BAYFull configuration
The EX4100 is a diskless enclosure: all four bays arrive empty, and usable capacity depends on the drives you fit and the RAID level you choose. In RAID 5 roughly one drive's capacity goes to parity; in RAID 1 or RAID 10 half the raw capacity is used for mirroring.
What this configuration suits
Compare the workload you have in mind against the fitted components.
one central location for documents, scans and project folders, reachable by every PC on the network.
A backup target for desktops, laptops and small servers, with RAID 1, 5 or 10 protecting against a single drive failure.
Home office and media storage where four bays give more room than a one or two bay unit.
It is limited by its Gigabit Ethernet connection, which caps any single transfer at roughly 110 to 120 megabytes per second. It is not the right choice for virtualisation datastores, large databases or many users editing heavy media files at the same time. RAID is not a backup on its own: keep a second copy of important data elsewhere.
Upgrade paths
- All four 3.5 inch bays are free on delivery, so capacity is set entirely by the drives you choose.
- Larger SATA hard drives raise capacity without changing the enclosure.
- Plan the final RAID layout before loading data: changing RAID level later usually means backing up, rebuilding the volume and restoring.
Compatibility
The EX4100 accepts 3.5 inch SATA hard drives. The minimum number of drives depends on the RAID level you intend to build.
| Item | Supported | Note |
|---|---|---|
| 3.5 inch SATA HDD | Yes | Up to 4 drives |
| RAID 0 | Yes | Striping, no redundancy |
| RAID 1 | Yes | Mirrored pair of drives |
| RAID 5 | Yes | 3 or 4 drives, single parity |
| RAID 10 | Yes | 4 drives, striped mirrors |
Use drives of the same capacity within an array, since RAID sizes every member to the smallest disk. Drives rated for continuous NAS operation are the better choice over basic desktop drives for an always-on unit. Drives taken from another system should be wiped first, as building an array erases their contents. Management is through a web browser on any computer on the same network.
Part numbers and identification
Condition & testing
- Powered on and boot verified
- Ports tested, configuration reset to factory defaults
- Fully working; minor cosmetic marks are possible on refurbished units.
- 6-month warranty on every unit we sell, with installation and support across Qatar.
What ships with this device
Images are for illustration. The unit supplied is the one described in the specification and may differ cosmetically.
Our team in Doha answers specification and compatibility questions during working hours.
Ask on WhatsApp sales@serverdove.comWhat type of drives does the WD My Cloud EX4100 support?
It supports 3.5" SATA HDD drives.
How many drive bays does this NAS enclosure have?
The My Cloud EX4100 is a 4-bay NAS enclosure.
Which RAID modes are supported?
This enclosure supports RAID 0, 1, 5, and 10.
Does this product include hard drives?
No, drives are not included with this NAS enclosure.
What network connection does it use?
It includes Gigabit Ethernet connectivity for network access.
What does refurbished mean at ServerDove?
Off-lease or decommissioned enterprise hardware that we clean, test and reset in Doha. Every unit goes through POST, burn-in, memory and drive checks and a power-supply check, with firmware and BIOS returned to defaults and drives securely erased.
Can I ask about the exact unit before I buy?
Yes. Message us the SKU on WhatsApp and we will confirm the condition and configuration of the unit in stock, with photos if you want them.
How fast is delivery in Qatar?
Orders ship from Doha and arrive within one working day anywhere in Qatar. Delivery is free on orders over QAR 300.
Can I collect in person?
Yes, from Nuaija Office 7, Doha, usually within 24 hours of ordering. Choose pick-up at checkout and we will message you when it is ready.
What warranty is included?
A 6-month hardware warranty from the delivery date, covering the unit as supplied. If a part fails we repair or replace it. Full terms are on the warranty page.
What is your return policy?
If the unit arrives faulty or not as described, tell us and we will collect it and replace or refund it. Full terms are on the Refund Policy page.
Which payment methods do you accept?
Visa, Mastercard and American Express online. Bank transfer is available for company orders; contact us for details.
Is the price shown the final price?
Yes. The price shown is what you pay; nothing is added at checkout, and every order ships with an invoice in your name or your company's name.
Why buy refurbished
Enterprise hardware, tested in Doha, at a fraction of the price of new
Every unit we sell has already proven itself in a data centre. We test it again, grade it, and back it with a warranty before it leaves our stock.
Tested before it ships
POST, burn-in, memory and power-supply checks on every unit. Anything that fails is repaired or pulled from stock, not sold.
Same performance, lower cost
A Xeon runs the same workloads whether it is new or two years old. Spend the difference on more CPUs, memory or storage.
In stock, not on order
New enterprise hardware can take weeks or months to arrive. Ours is on the shelf in Doha and delivered across Qatar within a day.
Warranty and local support
Every unit is covered. Installation, configuration and hardware support are handled by our own team in Qatar, not a call centre abroad.