2M5JK: Dell 300GB 10K rpm SAS 2.5-inch SFF hard drive (ST300MM0078)
Also listed as: ST300MM0078 · made by Seagate
Dell product number 2M5JK is a 300GB 10K rpm 2.5-inch SFF SAS drive built by Seagate as model ST300MM0078. Dell lists it in the PowerVault MD3060e support matrix of supported physical disk drives. Check the model on the drive label and the Dell part number on the caddy when you buy used.
Specifications
| Part number | 2M5JK |
|---|---|
| Brand | Dell |
| Made by | Seagate |
| Type | Hard drives |
| Other numbers | ST300MM0078 |
| Capacity (GB) | 300 |
| Interface | SAS |
| Form factor | 2.5-inch SFF |
| Speed | 10K rpm |
| Oem model | ST300MM0078 |
| Self encrypting | No |
About the 2M5JK
2M5JK is the Dell product number for a 300GB 10K rpm 2.5-inch SFF SAS hard drive made by Seagate, model ST300MM0078. Dell sells such drives in its own caddy with its own label, so the same Seagate model can appear under several Dell numbers. The drive is listed in the Dell Storage Enclosure Support Matrix for the PowerVault MD3060e, which is a 60-bay dense SAS enclosure. The matrix gives the Dell number, form factor, OEM model, capacity, speed, vendor and whether the drive is self-encrypting, and nothing beyond that.
Compatibility
The Dell support matrix lists 2M5JK for the PowerVault MD3060e only, and this page does not extend that to other Dell enclosures or servers. Dell points to its support site for current drive firmware, so check the firmware level of a used drive against the version Dell currently ships. The enclosure rules in the same matrix also apply, for example the limit of 25 solid state drives per enclosure, and drives must be installed starting with slots 0, 3, 6 and 9 of each drawer. The drive may carry a different Dell number in another enclosure's matrix, so match the number printed on the caddy.
Fits these models
Check compatibility with Dell
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Dell has tested with the Dell 2M5JK.
- Compatibility Dell E-Lab Navigator (storage and SAN interoperability) (free vendor sign-in)
- Support Dell Support: drivers, manuals and service tag lookup
FAQ
Which Dell enclosure lists 2M5JK?
The Dell Storage Enclosure Support Matrix for the PowerVault MD3060e lists 2M5JK as a supported physical disk drive.
What is the OEM model of Dell 2M5JK?
The matrix gives the OEM model as ST300MM0078 from Seagate, 300GB at 10K rpm.
Buying or selling 2M5JK?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Dell Storage Enclosure Support Matrix for PowerVault MD3060e, A08, checked 2026-10-28