DIGA Repair/Replacement/Capacity Upgrade 2TB HDD (Used for only 1 hour, like new) Type II ＜Compatible Models＞ DMR-BZT710 DMR-BZT720 DMR-BZT730 DMR-BZT810 DMR-BZT820 DMR-BZT830 DMR-BZT910 DMR-BZT920 DMR-BZT9000 DMR-BZT9300 DMR-BWT510 DMR-BWT520 DMR-BWT530 etc. This hard drive has been pre-loaded with DIGA-specific data for the listed models. After installing this hard drive, you can format it in the DIGA unit and start using it immediately. (No complicated PC setup required) This is a WD Purple drive for surveillance cameras, which is far more expensive and durable than the original HDD. WD Purple drives, with a maximum operating time of 1 million hours, are designed and engineered to provide reliability for 24/7 operation in surveillance cameras and security systems. If your original HDD is 500GB-1TB, you can upgrade to 2TB. If it's a 2TB model, the capacity will remain the same. If it's a 3TB model, the capacity will be reduced to 2TB. This is an ideal replacement HDD (used for only 1 hour, like new) for those experiencing issues such as: - Loud operating noise or unusual noises from the HDD - HDD failure - Unable to format due to HDD error detection. Note: Replacing the HDD will not fix problems caused by other factors, such as a faulty control board. Removing the original HDD will make previously recorded content unviewable. Please save your recordings to optical media (BD/DVD) or a USB-HDD registered to the replacement unit before the replacement. HDD Capacity...2TB