HGST Ultrastar 7K4000 4 TB 3.5" 7200 RPM SATA Internal Enterprise Hard Drive 64 MB Buffer 6.0Gb/s - HUS724040ALA640 / 0F14688 64 MB Cache 3.5-Inch Internal Bare or OEM Drives 0F14688

Overall, I'm pretty happy with it and it indeed does have nearly zero usage per the DIsk report (see attached screenshot).I had to read reviews to see if this seller was legit. There were a lot of positives so I pulled the trigger.I was happy to find that the S.M.A.R.T. disk report verified the hard drive was in good shape and practically new.If I encounter issues, I'll update this review but so far, so good!I purchased this drive as a replacement for one of my NAS drives.

I bought several of these drives. They arrived packaged well in individual boxes with electrostatic wrap.These drives are likely NOT brand new, probably refurbished and re-packaged from a data center or something.Manufacture dates on the drives I received varied from 2014-2015.These are fine for me as cheap cold storage backups as I will have multiple copies of this data. I would NOT use these as a working hard drive or as a solo backup drive.

I bought the 4TB version for $35 in July 2023. HGST is the Hitachi Brand. The disk came new, all seals intact, very clean as a new product would. See photos for the SMART info.It is weighty...but fells solid. This is not the fastest Harddisk you can get currently but it will keep up (see photos). This disk is more on the quite side - Its not loud.. (Well at least not yet!) As for longevity? - i will update in a year or two if there are any problems. I expect it to last a good while as I had the 1TB spinning for 10 years before it died and it did give warning signs before passing out completely. I would totally recommend getting these especially at the price - I may grab a few more while they last! HGST was bought by WD in 2012 and 2015 stopped manufacturing disks with that name and hence these disks are from a stock of older drives at reduced cost however the seller claims they will cover the drive for 5 years warranty. see photos.

AT STARTUPSMART Attributes Data Structure revision number: 16Vendor Specific SMART Attributes with Thresholds:ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE1 Raw_Read_Error_Rate 0x000b 100 100 016 Pre-fail Always - 02 Throughput_Performance 0x0005 100 100 054 Pre-fail Offline - 03 Spin_Up_Time 0x0007 100 100 024 Pre-fail Always - 04 Start_Stop_Count 0x0012 100 100 000 Old_age Always - 15 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 07 Seek_Error_Rate 0x000b 100 100 067 Pre-fail Always - 08 Seek_Time_Performance 0x0005 100 100 020 Pre-fail Offline - 09 Power_On_Hours 0x0012 100 100 000 Old_age Always - 010 Spin_Retry_Count 0x0013 100 100 060 Pre-fail Always - 012 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 1192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 1193 Load_Cycle_Count 0x0012 100 100 000 Old_age Always - 1194 Temperature_Celsius 0x0002 193 193 000 Old_age Always - 31 (Min/Max 24/32)196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0197 Current_Pending_Sector 0x0022 100 100 000 Old_age Always - 0198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0199 UDMA_CRC_Error_Count 0x000a 200 200 000 Old_age Always - 0SMART Error Log Version: 1ATA Error Count: 6 (device log contains only the most recent five errors)CR = Command Register [HEX]FR = Features Register [HEX]SC = Sector Count Register [HEX]SN = Sector Number Register [HEX]CL = Cylinder Low Register [HEX]CH = Cylinder High Register [HEX]DH = Device/Head Register [HEX]DC = Device Command Register [HEX]ER = Error register [HEX]ST = Status register [HEX]Powered_Up_Time is measured from power on, and printed asDDd hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,SS=sec, and sss=millisec. It "wraps" after 49.710 days.Error 6 occurred at disk power-on lifetime: 65315 hours (2721 days 11 hours)When the command that caused the error occurred, the device was active or idle.After command completion occurred, registers were:ER ST SC SN CL CH DH-- -- -- -- -- -- --84 51 29 40 8e f3 04 Error: ICRC, ABRT at LBA = 0x04f38e40 = 83070528Commands leading to the command that caused the error were:CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name-- -- -- -- -- -- -- -- ---------------- --------------------60 f8 08 71 8d f3 40 00 15:53:27.015 READ FPDMA QUEUED60 78 00 f1 8c f3 40 00 15:53:27.014 READ FPDMA QUEUED60 30 10 b1 8c f3 40 00 15:53:27.014 READ FPDMA QUEUED60 10 08 91 8c f3 40 00 15:53:27.014 READ FPDMA QUEUED60 08 00 79 8c f3 40 00 15:53:27.014 READ FPDMA QUEUEDError 5 occurred at disk power-on lifetime: 65315 hours (2721 days 11 hours)When the command that caused the error occurred, the device was active or idle.After command completion occurred, registers were:ER ST SC SN CL CH DH-- -- -- -- -- -- --84 51 b1 b8 05 40 00 Error: ICRC, ABRT at LBA = 0x004005b8 = 4195768Commands leading to the command that caused the error were:CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name-- -- -- -- -- -- -- -- ---------------- --------------------60 00 10 bb 28 ca 40 00 15:53:26.855 READ FPDMA QUEUED60 08 08 55 3e 18 40 00 15:53:26.854 READ FPDMA QUEUED60 f8 10 c3 e4 50 40 00 15:53:26.854 READ FPDMA QUEUED60 08 08 15 3e 18 40 00 15:53:26.853 READ FPDMA QUEUED60 00 00 69 04 40 40 00 15:53:26.853 READ FPDMA QUEUEDError 4 occurred at disk power-on lifetime: 65315 hours (2721 days 11 hours)When the command that caused the error occurred, the device was active or idle.After command completion occurred, registers were:ER ST SC SN CL CH DH-- -- -- -- -- -- --84 51 99 67 02 00 00 Error: ICRC, ABRT at LBA = 0x00000267 = 615Commands leading to the command that caused the error were:CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name-- -- -- -- -- -- -- -- ---------------- --------------------60 f8 00 08 02 00 40 00 15:43:53.326 READ FPDMA QUEUED60 f8 20 08 01 00 40 00 15:43:53.325 READ FPDMA QUEUED60 78 18 88 00 00 40 00 15:43:53.325 READ FPDMA QUEUED60 30 10 48 00 00 40 00 15:43:53.325 READ FPDMA QUEUED60 10 08 28 00 00 40 00 15:43:53.325 READ FPDMA QUEUEDError 3 occurred at disk power-on lifetime: 65309 hours (2721 days 5 hours)When the command that caused the error occurred, the device was active or idle.After command completion occurred, registers were:ER ST SC SN CL CH DH-- -- -- -- -- -- --84 51 e1 da 2a ca 01 Error: ICRC, ABRT at LBA = 0x01ca2ada = 30026458Commands leading to the command that caused the error were:CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name-- -- -- -- -- -- -- -- ---------------- --------------------60 00 00 bb 2a ca 40 00 10:00:02.889 READ FPDMA QUEUED60 00 00 bb 28 ca 40 00 10:00:02.874 READ FPDMA QUEUED60 f8 00 c3 e4 50 40 00 10:00:02.873 READ FPDMA QUEUED60 f8 08 c3 e3 50 40 00 10:00:02.864 READ FPDMA QUEUED60 78 00 43 e3 50 40 00 10:00:02.863 READ FPDMA QUEUEDError 2 occurred at disk power-on lifetime: 65305 hours (2721 days 1 hours)When the command that caused the error occurred, the device was active or idle.After command completion occurred, registers were:ER ST SC SN CL CH DH-- -- -- -- -- -- --84 51 11 c8 06 40 00 Error: ICRC, ABRT at LBA = 0x004006c8 = 4196040Commands leading to the command that caused the error were:CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name-- -- -- -- -- -- -- -- ---------------- --------------------60 78 10 f1 07 40 40 00 06:34:14.264 READ FPDMA QUEUED60 08 08 e1 07 40 40 00 06:34:14.264 READ FPDMA QUEUED60 70 00 69 06 40 40 00 06:34:14.264 READ FPDMA QUEUED60 00 00 69 04 40 40 00 06:34:14.253 READ FPDMA QUEUED60 f8 00 71 8e f3 40 00 06:34:14.252 READ FPDMA QUEUEDSMART Self-test log structure revision number 1No self-tests have been logged. [To run self-tests, use: smartctl -t]SMART Selective self-test log data structure revision number 1SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS1 0 0 Not_testing2 0 0 Not_testing3 0 0 Not_testing4 0 0 Not_testing5 0 0 Not_testingSelective self-test flags (0x0):After scanning selected spans, do NOT read-scan remainder of disk.If Selective self-test is pending on power-up, resume after 0 minute delay.

Using it with an enclosure as an external hard drive to store media. Works well. I have a 3T version of the same model, lasted for years so far, hope this one will do the same - brand is known for reliability. The only downside is a somewhat noisy seek operation - it’s quiet when reading/writing a large file (e.g. a movie) but fairly loud if you e.g. copy a large number of photos.