WD Red Pro 16TB NAS Internal Hard Drive WD161KFGX 3.5-inch SATA 6Gb/s 7200 RPM 512MB Cache CMR
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Western Digital
WD Red Pro 16TB NAS Internal Hard Drive WD161KFGX 3.5-inch SATA 6Gb/s 7200 RPM 512MB Cache CMR
€985.24 inc. VAT
WD161KFGX
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Delivered to Cyprus from EU stock
Local warranty support
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WD Red Pro 16TB NAS Hard Drive
16TB CMR SATA 6 Gb/s7200 RPM512 MB cache550 TB/year
The WD Red Pro 16TB (part number WD161KFGX) is a 3.5-inch CMR NAS hard drive that spins at 7200 RPM, carries a 512 MB cache and sustains up to 259 MB/s over SATA 6 Gb/s. It is built for always-on network attached storage in small business and creative workgroups, and Western Digital rates it for systems with an unlimited number of drive bays. Typically in stock with fast delivery across Cyprus.
Before you buy: this is a bare 3.5-inch internal drive with no mounting screws, SATA cable or enclosure in the box. It needs a system or NAS bay with a SATA 6 Gb/s port and a SATA power connector. Check your NAS vendor compatibility list for 16TB support before ordering, since some older enclosures cap the maximum drive size they can address.
Best For
✓ Multi-bay NAS enclosures
Rotational vibration sensors and NASware 3.0 firmware keep throughput stable when many drives vibrate together in one chassis.
✓ 24x7 always-on duty
Rated for continuous operation with a workload of up to 550 TB per year, far above a desktop drive.
✓ RAID arrays
Time-limited error recovery stops the drive from dropping out of a RAID set while it retries a bad sector.
✓ Large media and backup libraries
CMR recording keeps rewrite performance consistent, so it does not slow down the way SMR drives do when a volume fills up.
Key Features
CMR, not SMR
Conventional magnetic recording writes tracks without overlapping them, so random writes and RAID rebuilds stay predictable across the whole 16TB.
NASware 3.0 firmware
Western Digital tunes power management, error recovery and vibration handling specifically for NAS operating systems rather than desktop use.
Rotational vibration sensors
Onboard sensors measure chassis vibration in real time and compensate the head position, which matters in dense multi-drive enclosures.
550 TB per year workload
The drive is rated to read and write up to 550 TB annually, roughly ten times the rating of a typical consumer desktop drive.
Sustained 259 MB/s
Maximum sequential transfer rate over the SATA 6 Gb/s interface, measured on the outer tracks of the platter.
Unlimited bay support
Unlike the standard WD Red line, the Pro series carries no vendor limit on how many drives you may put in one enclosure.
Technical Specifications
| Drive | |
| Brand | Western Digital |
| Series | WD Red Pro |
| Part Number (MPN) | WD161KFGX |
| Form Factor | 3.5-inch internal |
| Capacity | 16TB |
| Interface | SATA 6 Gb/s |
| Rotational Speed | 7200 RPM |
| Cache | 512 MB |
| Recording Technology | CMR (conventional magnetic recording) |
| Performance and Endurance | |
| Sustained Transfer Rate | Up to 259 MB/s |
| Workload Rating | Up to 550 TB per year |
| Load / Unload Cycles | 600,000 |
| Non-recoverable Read Errors | Less than 1 in 10^15 bits read |
| MTBF | 2,500,000 hours |
| Power and Acoustics | |
| Power (Read / Write) | 6.1 W |
| Power (Idle) | 3.6 W |
| Power (Standby) | 0.9 W |
| Acoustics (Idle) | 20 dBA |
| Acoustics (Seek) | 36 dBA |
| Physical and Warranty | |
| Dimensions | 26.1 x 147 x 101.6 mm |
| Weight | 0.69 kg (1.52 lb) |
| Operating Temperature | 0 to 65 degrees Celsius |
| Warranty | 1-Year Warranty (Singular) |
| Product Identifiers | |
| MPN | WD161KFGX |
| EAN / GTIN | 0718037877662 |
Frequently Asked Questions
Does the WD161KFGX work with Synology and QNAP NAS units?
Yes. It is a standard 3.5-inch SATA 6 Gb/s drive and works in any enclosure with a SATA bay. Because capacity ceilings differ between models, check your specific NAS on the vendor compatibility list for 16TB drives before ordering.
Is the WD161KFGX suitable for a RAID array?
Yes. WD Red Pro is designed for RAID with time-limited error recovery and rotational vibration sensors, and Western Digital places no limit on the number of bays. Use identical drives across the array for predictable rebuild times.
What is the difference between WD Red Pro and WD Red Plus?
Red Pro spins at 7200 RPM, is rated to 550 TB per year and supports unlimited bays. Red Plus spins at 5400 RPM, carries a lower workload rating and is aimed at smaller enclosures. Both use CMR recording.
What do I need to know before buying the WD161KFGX?
It ships as a bare internal drive with no cables, screws or enclosure. You supply the SATA data and power connections, and you should back up important data separately since RAID is not a backup.
Singular Expert Insight
If this drive is going into a four-bay or larger enclosure that runs continuously, the Pro series is the right choice over WD Red Plus: the 7200 RPM spindle and the 550 TB per year rating are what let it absorb nightly backups and RAID rebuilds without accelerated wear. Buy drives in matched sets so rebuild behaviour is consistent, and pair the array with a separate backup target. Browse the full range of NAS hard drives or, if you are building the enclosure yourself, our NAS, DAS and RAID storage appliances.
Buyer's Guide
Buy this if
You run a multi-bay NAS around the clock and need a CMR drive rated for heavy write workloads and RAID rebuilds.
Skip if
You only need occasional desktop storage or a single-drive backup disk. A cheaper desktop or WD Red Plus drive will do and will run quieter and cooler.
Also consider
WD Purple Pro for video surveillance recorders, WD Gold for enterprise servers, or an internal SSD if you need speed rather than bulk capacity.
Form Factor
- 3.5",
- Internal
Interface
- SATA
Technical specifications
Μέγεθος
16TB
Χαρακτηριστικά
Product Code
03:150786
EAN Code
0718037877662
Manufacturer
Western Digital