Western WD121KRYZ Digital 12TB 6Gb/s SATA 7200 3.5-in 256MB Hard Drive

Key specifications

The figures below come from this listing's own record. They are the ones that decide whether a part drops into an existing system.

• Storage Capacity: 12 TB. Usable capacity as the manufacturer states it.
• Drive Interface: SATA. The bus the drive expects; the controller or backplane has to present the same one.
• Interface Standard: 6Gb/s SATA. The negotiated link standard.
• Maximum Data Transfer Rate: 6 Gb/s. Peak link rate, which is not the same as sustained throughput.
• Drive Type: Internal. Where the drive is designed to sit.
• Drive Width: 3.5". Bay width, which decides whether it drops into the slot.
• RPM: 7200. Rotational speed recorded for this part.
• Cache Storage: 256 MB. Onboard cache or buffer.
• Form Factor: LFF. The size or mounting class the catalogue records for this part.

Confirming fit

Memory Clearance does not publish a verified compatibility list for WD121KRYZ. Whether a part of this type is supported is defined by the system or switch vendor's own compatibility matrix, not by the part on its own.

The dependable check is the part number. Read the installed part number from the system's management interface and compare it with the number on this listing. If you send your server model with a quote request, it is checked against this part before you order.

Other Western Digital Server Hard Drives listings

Other parts in the same brand and category. These are not substitutes for this part number; check the specification before ordering.

• WD WD200MFYYZ-01D45B1 2TB 6Gb/s SATA 7200 3.5-inch 64MB Hard Drive
• WD WDBNSW0020HNC-EESN 2TB 6Gb/s SATA 7200 3.5-inch 64MB Hard Drive
• WD WDBMMA0050HNC-NRSN 5TB 6Gb/s SATA 5400 3.5-inch 64MB Hard Drive
• WD HUH721010ALE60y 10TB 6Gb/s SATA 7200 3.5-inch 256MB Hard Drive
• WD E4550-0025 4.55GB Ultra-320 SCSI 7200 3.5-in 512KB Hard Drive
• Western WD91FN Digital 9GB Ultra-320 SCSI 10000 3.5-inch 2MB Hard Drive
• Western 4H99-6T0000-000 Digital 6TB 6Gb/s SATA 7200 3.5-inch Hard Drive
• Western 4H99-4T0000-000 Digital 4TB 6Gb/s SATA 7200 3.5-inch Hard Drive
• WD HUH721212AL420y 12TB 12Gb/s SAS 7200 3.5-inch 256MB Hard Drive
• WD WD8004FRYZ-01JPDB1 8TB 6Gb/s SATA 7200 3.5-inch 256MB Hard Drive

Common questions

Is WD121KRYZ in stock?

Stock moves, so the quantity shown on this listing is the current figure. For a larger quantity, send the part number and how many you need and the answer comes back against that exact number. Quotes are answered weekdays 8:00 am to 5:00 pm PST.

Does this drive come with a tray?

Only if the listing name says so. Drive listings are either bare or supplied in a generation-matched hot-swap tray, and the name states which.

Can I use this to replace a failed array member?

Match the interface, the capacity, the sector format and the class of the drive already in the array. A mismatch on any of those can be rejected by the controller.

What do I send to get a price on WD121KRYZ?

The part number, the quantity, the condition you will accept and the server model it goes into. That is enough to answer in one pass.

Guides

• Reading memory and drive specs
• Replacing a failed array drive
• Which drive tray fits your server
• Buying in volume