QNAP · Enterprise models
QNAP ES2486dc
The QNAP ES2486dc is a 24-bay all-flash rackmount NAS built around the Intel Xeon D-2142IT processor. Installed memory is 64 GB DDR4 ECC RDIMM per controller, expandable to 512 GB per controller. Networking is 3 x 2.5GbE, 4 x 10GbE SFP+, per controller.
- Drive bays
- 24
- Processor
- Intel Xeon D-2142IT
- Memory
- 64 GB DDR4 ECC RDIMM per controller
- Network
- 10GbE
Who it suits
All-flash storage suits work that needs fast response: virtual machines, databases and video editing. It costs more per terabyte than hard drives, so it is usually paired with a larger hard-drive NAS for backup and archive.
QNAP ES2486dc specifications
| Processor | Intel Xeon D-2142IT, 8-core, 1.9 GHz (up to 3.0 GHz), per controller |
|---|---|
| Memory installed | 64 GB DDR4 ECC RDIMM per controller |
| Maximum memory | 512 GB per controller |
| Drive bays | 24 x 2.5" SAS 12Gb/s |
| Network ports | 3 x 2.5GbE, 4 x 10GbE SFP+, per controller |
| USB ports | 2 x USB 3.2 Gen 1 per controller |
| Expansion slots | 2 x PCIe Gen 3 x8 per controller |
| HDMI | none |
| Form factor | Rackmount 2U |
| Size (H × W × D) | 88.3 x 446.2 x 504.1 mm |
| Weight | 23.4 kg |
| Power consumption | 579.59 W operation |
| Power supply | 700 W redundant |
| Warranty | 5 years |
| Versions sold | ES2486dc-2142IT-128G (64 GB per controller), ES2486dc-2142IT-96G (48 GB per controller) |
Specifications from QNAP's published data, checked October 2026. See the ES2486dc on QNAP's website. Confirm details before ordering.
Usable capacity by RAID level
How much space the ES2486dc gives with typical drive sizes.
| RAID level | 24 × 1 TB | 24 × 2 TB | 24 × 4 TB | 24 × 8 TB |
|---|---|---|---|---|
| RAID 6 | 22 TB | 44 TB | 88 TB | 176 TB |
Space is shown before formatting; expect about 10% less in use. Larger systems are often split into more than one RAID group.
What we do with it
- Storage
NAS supply and installation
A right-sized Synology, QNAP or Asustor unit with the drives, RAID level and network setup your office needs.
- Backup
Automatic backup setup
Scheduled backups of PCs, servers and shared folders to the NAS, with an off-site copy, so nobody has to remember to do it.
- Versions
Ransomware protection for NAS
Point-in-time snapshots and protected copies that let you roll a folder back to how it was before an attack or a mistake.
- Move
Data migration
We move your files, users and permissions from old servers, external drives or an ageing NAS.
Questions about the ES2486dc
How much usable storage does the ES2486dc give?
It depends on the drives and the RAID level. With 24 × 2 TB drives in RAID 6 you get about 44 TB before formatting. The capacity table on this page shows other combinations.
Can the memory in the ES2486dc be upgraded?
Yes. It ships with 64 GB DDR4 ECC RDIMM per controller and QNAP lists a maximum of 512 GB per controller.
Does the ES2486dc have 10GbE?
Yes. Its network ports are 3 x 2.5GbE, 4 x 10GbE SFP+, per controller.
What warranty does the ES2486dc have?
QNAP lists a hardware warranty of 5 years for this model.
Do you supply the ES2486dc with drives and installation?
Yes. We supply it with compatible drives fitted, configured and tested, and can install it at your office. Ask for a quote on this page.
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24-bay alternatives from other brands
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Synology FS3600
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