how many watts does it consume on idle?

When NAS is idle it should put the HDD in Sleep Mode and the power consumption during that time is 20.943W.

Can you install 4 mechanical drives and an M.2 as a buffer?

I have the 2-Bay version of this model - not sure what you mean by "buffer", but the supported strategy is to use the M.2 in pairs as a caching strategy. There is a specific configuration and monitoring for read/write caching.

Can you upgrade the ram?

The TS-453E is equipped with 8GB of RAM that is not expandable, meaning it cannot be increased in capacity.

Does the apple time machine functionality work again? it stopped working due to software limitations.

TimeMachine works fine with the latest Firmware on the NAS and latest Hybrid Backup Sync App. We recently did a Webinar on TimeMachine which you can access by visiting https://www.youtube.com/watch?v=9waoTysKprM&list=PLGJqdI4WiPpG55fjtJ4M1yhUY5cJeGigy&index=37. If you have any issues please feel free to open a ticket by visiting https://service.qnap.com/en-us.

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Description

🚀 Elevate your data game with speed, security, and scalability — don’t get left behind!

TURBOCHARGED STORAGE - Dual M.2 NVMe SSD slots enable lightning-fast cache acceleration or high-speed SSD pools for seamless workflow.
POWERHOUSE PERFORMANCE - Intel Celeron J6412 quad-core processor delivers smooth multitasking and blazing speeds up to 2.9 GHz.
NEXT LEVEL NETWORK SPEED - Dual 2.5GbE ports accelerate file sharing and large data transfers, perfect for collaborative teams and media pros.
FUTURE PROOF EXPANDABILITY - Four drive bays plus multiple USB 3.2 Gen 2 ports (10Gb/s) let you scale storage and backup effortlessly.
ENTERPRISE GRADE SECURITY RELIABILITY - Supports ZFS file protection and Bitdefender integration, ensuring your data stays safe and your system bulletproof.

The QNAP TS-453E-8G-US is a 4-bay desktop NAS powered by an Intel Celeron J6412 quad-core processor and 8GB DDR4 RAM, designed for high-performance multitasking and efficient data management. Featuring dual 2.5GbE ports for ultra-fast network connectivity and dual M.2 PCIe Gen3x2 NVMe SSD slots for cache acceleration, it supports advanced ZFS file protection and Bitdefender security. Ideal for IT professionals and creative teams, this diskless NAS offers scalable storage, robust media streaming, and enterprise-grade reliability with continuous firmware updates and a 3-year warranty.

Specifications

ASIN	B0B99N9QMM
Best Sellers Rank	#92 in Network Attached Storage (NAS) Devices
Brand	QNAP
Built-In Media	AC Adapter, Drive tray keys x 2, Ethernet cable x 1, Flat head screw (for 2.
Color	Black
Compatible Devices	Camera
Customer Reviews	4.3 4.3 out of 5 stars (88)
Item Weight	7.6 pounds
Manufacturer	QNAP
Mfr Part Number	TS-451+
Model Number	TS-453E-8G
Mounting Type	Tabletop
Number of Items	1
Size	4 Bay (Unav.)
UPC	885022024513
Unit Count	4 Count
Warranty Description	3 year warranty

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TS-453E-8G-US

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