Quick Summary
The TERRAMASTER F4-423 is a 4-bay network storage server for SMB use, supplied diskless and fitted with a N5095 quad-core CPU, 4GB DDR4 memory and two 2.5GbE ports. It is set up for buyers who want a compact NAS with room for multiple drives and expansion options.
Alongside the main storage bays, it supports 3.5-inch and 2.5-inch SATA HDDs, 2.5-inch SATA SSDs and a built-in M.2 2280 NVMe SSD slot for cache acceleration. It also supports RAID 0, 1, 5, 6 and 10, plus online capacity expansion and online migration.
Who It Is Best For
This NAS suits buyers building a small business storage system who need central file storage and want the option to run backup, sync and server tasks from one device. It is also aimed at users who want to check drive choice, RAID mode and expansion needs before ordering.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Model | TERRAMASTER F4-423, identifying the specific 4-bay NAS version. |
| Bay count | 4-bay design, so it supports four internal drives. |
| Processor | N5095 quad-core CPU, with the description also referring to N5105/5095 quad-core 2.0GHz CPU. |
| Memory | 4GB DDR4 memory, with expansion mentioned up to 32GB. |
| Network ports | 2 x 2.5GbE ports for network connection. |
| Drive support | Compatible with 3.5-inch and 2.5-inch SATA HDDs and 2.5-inch SATA SSDs. |
| NVMe slot | Built-in M.2 2280 NVMe SSD slot for cache use. |
| RAID support | Supports RAID 0, 1, 5, 6 and 10, plus online capacity expansion and online migration. |
| Maximum raw capacity | Stated maximum internal raw capacity is 80TB using 20TB drives across four bays. |
| Form factor | Small-sized compact design that can be used vertically or horizontally. |
Why Buyers Choose It
- The 4-bay layout gives room for multiple drives in one NAS unit.
- Two 2.5GbE ports provide a faster network option than a single standard port, depending on the rest of the network setup.
- The M.2 2280 NVMe slot adds cache support for buyers planning storage acceleration.
- Support for online capacity expansion and online migration matters if storage needs may change later.
Real World Use
The F4-423 is described for file storage servers, mail servers, web servers, FTP servers, MySQL databases, CRM systems, Node.js and Java virtual machines, along with other commercial applications. That makes the NAS relevant to buyers who want one device to handle storage and selected server tasks.
The aluminium-alloy shell, intelligent temperature control and ultra-quiet fan are mentioned as part of the design. The unit can be placed vertically or horizontally, which may help when matching the available space.
What To Know Before You Buy
Pros: The 4-bay design, dual 2.5GbE ports and NVMe cache slot give you several storage and network configuration options.
Cons: It is sold diskless, so you will need to choose compatible drives separately.
Check the selected drive type, RAID mode and capacity plan before ordering. The unit is also identified as SMB-oriented, so make sure it matches your intended use.
Common Buyer Questions
Does it come with drives installed?
No. This is a diskless NAS, so drives are chosen separately.
Which drives does it support?
It supports 3.5-inch and 2.5-inch SATA HDDs, plus 2.5-inch SATA SSDs.
Can storage be expanded later?
Yes. Online capacity expansion and online migration are both supported.
How many network ports does it have?
It has two 2.5GbE ports.
Final Buying View
The TERRAMASTER F4-423 is a diskless 4-bay NAS for buyers who want flexible storage, RAID options and dual 2.5GbE networking in a compact unit. Review your drive choice, capacity plan and network setup before ordering.




