HGST HUC106060CSS601 600GB SAS 10K HDD: Specs and Sourcing Guide
HGST part numbers beginning HUC are the ones to look for when you need a 2.5-inch enterprise drive, and this is genuinely useful shorthand. HUS denotes the 3.5-inch Ultrastar line; HUC denotes the small form factor. Three characters rule half the search results in or out.
The HUC106060CSS601 is a 600GB SAS 6Gb/s 10K 2.5-inch Ultrastar drive.
Why form factor is the first filter
When sourcing a replacement drive, people usually filter by capacity first. That is the wrong order, because capacity is the one attribute you have some flexibility on and form factor is the one you have none on.
A 3.5-inch drive will not physically enter a 2.5-inch bay. There is no adapter that makes it work, no firmware setting, no compromise. The chassis takes one size and that is settled at manufacture.
Capacity, by contrast, has some give. A larger drive will seat and function, wasting the excess in an array. A smaller one usually will not work in an existing group, but for a standalone volume it might be fine.
So the sensible filter order is: form factor first, then interface, then carrier if it is an OEM chassis, then capacity, then speed class. Getting the first three right means the drive will physically work; the last two determine whether it works well.
HUC106060CSS601 specifications
| Part Number | HUC106060CSS601 |
| Manufacturer | HGST / Western Digital |
| Product Family | Ultrastar |
| Capacity | 600GB |
| Interface | SAS 6Gb/s |
| Rotational Speed | 10,000 RPM |
| Form Factor | 2.5 inch SFF |
| Drive Class | Enterprise Performance |
| Condition | Refurbished, function-tested |
| Warranty | 30-day TechSellerUSA warranty |
The bare drive advantage
This is the manufacturer part rather than an OEM-branded one, and for the right chassis that is a meaningful saving rather than a compromise.
An HPE, Dell, IBM or Lenovo drive of the same capacity and interface is usually the same mechanism, from one of the three remaining manufacturers, in a vendor carrier with vendor firmware. You pay for the carrier and the firmware validation.
In a chassis that needs neither — Supermicro, white-box builds, generic-tray enclosures, JBODs — the OEM premium buys nothing. The bare manufacturer part does the identical job for less.
The line is clear. If your chassis has a Smart Array, PERC or ServeRAID controller that validates firmware, or if you need the tray supplied, order the OEM part number. If it does not, order the bare drive and keep the difference. Our compatibility guide lists which platforms fall on which side.
SKU: HUC106060CSS601 | Refurbished & function-tested | 30-day warranty
View Details & Request a Quote →600GB at 10K in a dense chassis
The combination this drive represents — small form factor, 10K, 600GB — was the standard building block of virtualisation infrastructure for years, and it is worth understanding why that combination specifically.
A 2U chassis with twenty-four SFF bays filled with these gives you a substantial number of spindles working in parallel. Since IOPS scale with spindle count, that parallelism is what makes the array capable of serving many concurrent virtual machines without any one of them waiting on disk.
600GB per drive then provides enough total capacity that the datastore is useful without needing an external enclosure. Smaller drives would mean more bays for the same volume; larger ones would mean fewer spindles for the same capacity, and fewer spindles means less concurrency.
Later generations moved to 1.2TB at 10K, doubling capacity per bay, but the underlying design principle is the same: enough spindles for the workload, enough capacity per spindle to fill the volume.
SAS 6Gb/s and generation mixing
This is a 6Gb/s drive, which works in 3Gb/s and 12Gb/s backplanes alike — SAS negotiates to the lower of the two speeds and functions normally.
On a 10K mechanical drive the link speed is never the bottleneck. The platters cannot sustain data rates close to 6Gb/s except in short bursts from cache, so the spindle limits throughput long before the interface does.
That backward and forward compatibility means a mixed-generation fleet can standardise on one part number rather than stocking several, which simplifies spares holding considerably.
Ordering
We supply the HUC106060CSS601 refurbished and function-tested with a 30-day warranty, single spares or in volume for full-chassis population. Browse the full Western Digital and HGST range or our complete enterprise hard drives catalogue.
Common questions
What is the difference between HUC and HUS part numbers?
HUC denotes the 2.5-inch Ultrastar line and HUS the 3.5-inch one. It is useful shorthand when scanning search results, since form factor is the attribute with no flexibility at all.
Should I filter by capacity or form factor first?
Form factor first. A 3.5-inch drive will not enter a 2.5-inch bay under any circumstances, while capacity has some flexibility. The sensible order is form factor, interface, carrier if OEM, then capacity and speed class.
Why is a bare drive cheaper than the OEM equivalent?
An OEM drive is usually the same mechanism in a vendor carrier with vendor firmware, and you pay for both. In a chassis that needs neither — Supermicro, white-box, generic trays — that premium buys nothing.
Will a 6Gb/s drive work in a 12Gb/s backplane?
Yes, at 6Gb/s. SAS negotiates to the lower of the two speeds. On a 10K mechanical drive the spindle limits throughput long before the interface does, so the link speed is not a practical constraint.
Tell us your chassis type and we will confirm whether a bare drive or an OEM part is what you need.
