WD121KRYZ: Western Digital Gold 12TB 7200RPM SATA 3.5-Inch Hard Drive
MPN: WD121KRYZ|By: Western Digital

Price
Quoted on request
Current pricing within 48 business hours.
In Stockships worldwide
Key specs
- Capacity
- 12TB
- Drive Interface
- SATA
- Rotational Speed
- 7200RPM
- Form Factor
- 3.5-Inch
- Condition:
- New (authorized channel)
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
Authorized & warrantied
Sourced through authorized distribution, with the full manufacturer warranty.
Compatibility checked
Validated against your server platform before dispatch.
Delivery & lead time
Confirmed with your quote, including expedited freight where available.
Business & public sector
POs, net terms and volume pricing for qualified organizations, government and edu.
Product overview
The Western Digital Gold 12TB 7200RPM SATA 3.5-Inch hard Drive is supplied under part number WD121KRYZ. Replacing a failed drive means matching interface, form factor and firmware to the backplane it is going into. This is a SATA unit. Send us the server model and we will confirm the fit rather than leave you to check it.
Ask for the datasheet and firmware notes with the quote; we would rather you check our claim than take it.
Specifications
General
- Manufacturer part number
- WD121KRYZ
- Product Type
- Server Hard Drives
- Manufacturer
- Western Digital
Technical specifications
- Capacity
- 12TB
- Rotational Speed
- 7200RPM
Interfaces & connectivity
- Drive Interface
- SATA
Physical
- Form Factor
- 3.5-Inch
Specifications for WD121KRYZ as published by Western Digital. Where a value is absent it is because we could not verify it, not because it does not exist. Ask and we will check.
Where the Western Digital WD121KRYZ is deployed
- Like-for-like replacement of WD121KRYZ in an existing system
- Rebuilding a parity group after a drive failure
- Holding a firmware-matched cold spare per chassis family
Who this part is for
- Teams standardising a mixed drive estate onto one firmware family
- Procurement replacing drives out of a maintenance contract
- IT teams swapping a failed drive in a live parity group
What you get ordering this from us
Ordered by part number
The order is placed against WD121KRYZ, not against a description of it, so there is no room for a substitution you did not agree to.
Volume pricing
The listed price is per unit; tiered pricing applies at quantity and purchase orders are accepted.
Spares held to a fleet standard
Tell us the chassis you run and we will keep the spare consistent with what is already in the shelf.
Questions buyers ask about this part
Is WD121KRYZ genuine and is the warranty intact?
Yes, new and sealed, with the Western Digital warranty and the firmware update path intact. We do not sell refurbished stock as new, and we do not source grey-market units.
Will WD121KRYZ work in my server?
Send the server model or the shelf it is going into. Vendor-keyed firmware is the usual reason an identical-looking drive is rejected, so we check that alongside interface and form factor.
Do you accept purchase orders and quote at volume?
Yes. We quote against a purchase order and hold the price for the quote period, with tiered rates at quantity. Net terms are available once the account is approved.
Compare other Server Hard Drives we stock
| Model | Brand | Key spec | Availability | From |
|---|---|---|---|---|
| Seagate Exos X18 12TB 7200RPM SAS 12Gb/s 512e 3.5-inch Enterprise Hard Drive | Seagate | Capacity: 12TB | In Stock | $280 |
| Toshiba MG09 16TB 7200RPM SATA 6Gb/s 512e 3.5-inch Enterprise Hard Drive | Toshiba | Capacity: 16TB | In Stock | $335 |
| Hitachi HGST Ultrastar He10 8TB 7200 RPM 12Gb/s SAS 512e 3.5"-inch Enterprise Hard Drive | Hitachi | Capacity: 8TB | In Stock | $190 |
| Dell 4TB 7200RPM 12Gb/s SAS 512e 3.5-inch Hot-Plug Nearline PowerEdge Hard Drive | Dell Technologies | Capacity: 4TB | In Stock | $155 |
| HPE 4TB 7200RPM 12Gb/s SAS 512e 3.5-inch LFF Smart Carrier Midline ProLiant Hard Drive | HPE | Capacity: 4TB | In Stock | $155 |
| HP 2TB 7200RPM 6Gb/s SAS 512n 3.5-inch LFF Smart Carrier Midline ProLiant Gen8 Hard Drive | HP | Capacity: 2TB | In Stock | $80 |
Browse all Server Hard Drives or everything we stock from Western Digital.
Specifying a system, not just the part?
Bulk capacity usually sits behind the flash tier that feeds a training cluster rather than under it.
