COLAMCO
Log in / register My Account
$0.00
Ubiquiti

Ubiquiti UNAS-4-B NAS Storage System

$427.41
None availableas of 09/29/2026

Ships when available. Free shipping on most items when you spend $100 or more.

Special orders typically ship in 1-12 weeks.

Rated excellent by our customers Read our reviews

Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Protect this device

Plans are optional and can be left off. Your order is unchanged unless you add one.

Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

UniFi Network Attached Storage with (4) 2.5/3.5" HDD bays, (2) M.2 NVMe SSD cache slots, 2.5 GbE networking, USB-C connectivity, and an included PoE+++ adapter, all in a compact footprint.

Technical specifications

General Information

Manufacturer Ubiquiti Inc.
Manufacturer Part Number UNAS-4-B
Manufacturer Website Address http://www.ui.com
Brand Name Ubiquiti
Product Line UNAS
Product Model UNAS-4-B
Product Name UNAS-4-B NAS Storage System
Product Type NAS Storage System

Storage

Number of Hard Drives Supported 4
Number of Hard Drives Installed 0
Number of Solid State Drive Supported 2
Number of Solid State Drive Installed 0
Total Solid State Drive Capacity Supported 2 TB

Processor & Chipset

Processor Manufacturer ARM
Processor Type Cortex A55
Processor Core Quad-core (4 Core)
Processor Speed 1.70 GHz

Memory

Standard Memory 4 GB

Network & Communication

Ethernet Technology 2.5 Gigabit Ethernet

I/O Expansions

Number of Total Expansion Bays 4
Number of 2.5" / 3.5" Bays 4

Controllers

Controller Type NVMe
RAID Supported Yes
RAID Levels 5, 6, 10

Interfaces/Ports

Drive Interface PCI Express NVMe
Total Number of USB Ports 1
Network (RJ-45) Yes
Number of Network (RJ-45) Ports 1
Remote Management Yes

Management & Protocols

Protocols NFSSMBCIFS/SMB

Power Description

Maximum Power Supply Wattage 90 W

Physical Characteristics

Color Family Black
Product Color Black
Height 8.8"
Width 5.1"
Depth 9.7"
Form Factor Desktop
Compatible Drive Bay Width 3.5"
Weight (Approximate) 5.73 lb

Ratings and reviews

Do you own the Ubiquiti UNAS UNAS-4-B?

Be the first to write a review.

Displaying 1-10 of 70

Similar products you might also like

Storage Servers

Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Special order item. This item ships direct from the manufacturer and cannot be cancelled once ordered. If you have any questions before ordering, ask us first: chat with us or call 1-800-692-8757.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.