IronWolf 125 SSD, 250 GB, 2.5", 3D TLC, SATA 6Gb/s
Powerful SSDs Built for NAS
Seagate IronWolf® SSDs are built for NAS and offer capacities ranging from 240 GB to 4 TB. Each drive includes AgileArray™ firmware to keep your NAS enclosure maximised for demanding 24×7 and multi-user environments, and can be used in an all-flash array (AFA) or in a NAS capable of tiered caching.
High Endurance for Longer Life
The IronWolf SSDs deliver ultra high endurance and performance, allowing for increased performance and reliability. Watch and learn more about this fascinating technology.
Amplify the Impact of Your Business’s Data
If your business relies on multiple users and an all-flash array system, tap into the power of Synology FS3017 equipped with IronWolf 110 for sustained data rates up to 560 MB/s and begin harnessing more data — all day, every day. For NAS capable of caching or tiered storage, combine the IronWolf 110 or 125 Pro SATA with an IronWolf 510 M.2 NVMe.
Go Hybrid With HDD Space and SSD Cache
If you want it all — fast caching, max capacity, incredible endurance, and minimal cost — then it’s time to go hybrid. Thanks to an IronWolf portfolio that includes both HDDs and SSDs, you can easily take your compatible NAS system, such as the QNAP TVS-951X, to the heights of comprehensive performance.
Optimised for NAS AFA or Cache Tiering
High-Capacity Storage
- High capacity
- Affordable cost
- Larger size
NAS with all 3.5-inch HDD
High capacity and lower price HDD compared to SSD.
Hybrid of HDD and SSD Caching
NAS combining
- Maximised capacity
- Minimal cost
- Optimal size and performance
Lower TCO with advantage of capacity and performance.
Pure Performance
NAS with all 2.5-inch and M.2 SSDs
- Smaller capacity
- Higher cost
- Smaller size, high density
Lowest latency with 10 GbE network performance.
Drive Health and Data Recovery
When integrated into compatible NAS systems, these drives provide overall system reliability increases due to IronWolf Health Management (IHM).
| Features |
| TBW rating |
300 |
| Linux operating systems supported |
Yes |
| Windows operating systems supported |
Yes |
| Mean time between failures (MTBF) |
1800000 h |
| Random write (4KB) |
90000 IOPS |
| Random read (4KB) |
95000 IOPS |
| Write speed |
540 MB/s |
| Read speed |
560 MB/s |
| Data transfer rate |
6 Gbit/s |
| Component for |
NAS |
| NVMe |
Yes |
| Memory type |
3D TLC |
| Interface |
Serial ATA III |
| SSD capacity |
250 GB |
| SSD form factor |
2.5" |
| Power |
| Power consumption (idle) |
0.11 W |
| Power consumption (max) |
2.3 W |
| Operating voltage |
5 V |
| General |
| Product Family |
IronWolf |
| Operational conditions |
| Operating shock |
1500 G |
| Storage temperature (T-T) |
-40 - 85 °C |
| Operating temperature (T-T) |
0 - 70 °C |
| Weight & dimensions |
| Weight |
50 g |
| Height |
7.1 mm |
| Depth |
100.3 mm |
| Width |
70.1 mm |
| Packaging data |
| Package weight |
100 g |
| Package height |
155 mm |
| Package depth |
24 mm |
| Package width |
109 mm |
| Logistics data |
| Master (outer) case gross weight |
1.2 kg |
| Master (outer) case height |
140 mm |
| Master (outer) case length |
153 mm |
| Harmonized System (HS) code |
84717070 |
| Master (outer) case width |
292 mm |
| Layers per pallet |
9 pc(s) |
| Master (outer) cases per pallet |
216 pc(s) |

Have you ever thought of trading in your old smartphone?
Recycling your phone is a great way to help the environment and earn some extra money, and Clove Technology offers a recycling programme that pays you for your old phone(s)!
So if you're about to buy a new phone from us, or you've recently bought one, why not sell us the handset you no longer need?
How much will you offer for my phone?
That depends on its age and condition. More recent phones generally have a higher value than old ones, but other factors can affect value. These include if the phone is working or not and its network lock status. Fully working phones with an unlocked network status will command a higher value if they are in good condition.
We pledge to beat the major recycling services operating in the UK on the price they offer for your
How do I get my phone(s) back to you?
On our recycling site SEARCH, for your phone and provide details of its status and condition. We will then offer you a price for your phone. If you choose the option to Sell Now, a recycling pack to you for returning your phone.
Alternatively, you can call our recycling team on 0330 1180686, choosing option 2.