Get 20% apparel with code APPAREL20
My cart
  • All Categories
Only 2 left


QNAP Network Attached Storage TS-673-4G-US 6Bay AMD RX-421ND 4GB DDR4 6x 2.5/3.5 inch 4x GbE LAN Retail

Buy and earn 818 points ($8.18)!
Only 2 left
Sold & Shipped byTheKeyKey
Contact Seller
Ready to ship in 2 business days
+ View available shipping options
Worry-Free Guarantee
Receive your item or receive a refund.Your order and shipping are covered in full

Product Description


Processor: AMD R-Series RX-421ND quad-core 2.1 GHz processor, Turbo Core up to 3.4 GHz
Architecture: 64-bit
Encryption Engine: AES-NI
System Memory
4 GB DDR4 (2 x 2 GB)
Maximum Memory
64 GB (4 x 16 GB)
Memory Slot
(For dual- or quad-DIMM configurations, you must use a pair of identical DDR4 modules.)
Flash Memory
Drive Bay
6 x SATA 6 Gbps
Drive Compatibility
3.5-inch SATA hard disk drives
2.5-inch SATA hard disk drives
2.5-inch SATA solid state drives
M.2 SSD Slot
2 x M.2 2260/2280 SATA 6Gb/s SSDs (Sold separately)
1. The M.2 SSD is not included as standard.
2. M.2 SSD operations can easily generate excessive heat. It is recommended to install a heatsink (from QNAP or a third-party provider) on the M.2 SSD.
SSD Cache Acceleration Support
Drive bays 1 to 6
M.2 slots 1 to 2
Optional: M.2 SSD using QNAP QM2 PCIe expansion card
The following are not hot-swappable: M.2 SSDs, SSD cache drives, SSDs using PCIe expansion slots.
Gigabit Ethernet Port
4 x RJ45
PCIe Slot
2 x PCIe 3.0 x4
Note: Support full-height 10GbE LAN card, USB 3.1 Gen2 (10Gb/s) expansion card, QM2 card, PCIe wireless network card or a bus-powered graphics card.
USB Port
4 x USB 3.0 (Front: 1 Back: 3)
2 x 3.5 mm dynamic microphone jacks
1 x 3.5 mm line-out jack
1 x speakers
Note: You cannot use the speakers and the line-out jack simultaneously.
USB One Touch Copy
Front: USB 3.0
IR sensor
Optional QNAP RM-IR004 remote control (MCE compatible)
Form Factor
Power Consumption (W)
HDD standby: 35.11 W
In operation: 63.69 W
(with 6 x 2TB HDDs installed)
Sound Level
Sound pressure (LpAm): 23.0 dB(A)
Power Supply Unit
250W, 100-240V AC, 50/60Hz
System: 2 x 90 mm
CPU: 1 x 60 mm
Operating Temperature and Relative Humidity
0 40oC ( 32oF - 104oF ), 5 - 95% RH non-condensing, wet bulb: 27oC (80.6oF)
Security Slot
Kensington security slot


BrandQNAP Systems
ManufacturerQNAP Systems
Base SKU215495

Frequently Asked Questions

What are my shipping options for this product?

Shipping Options:

Standard -
Usually delivers in 3 - 10 business days after shipment

How do product returns work?
You may return any new purchased that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. We reserve the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. We will not accept returns of products that are more than 30 days after you receive the shipment. 

We charge sales tax for items shipped to California.