What are the power requirements ? Idle watts ? Active watts ? Maximum/Peak watts ? Thank you

Since this is 100% solid state the power requirements are minimal. I didn't measure the power usage.

will this work on a asrock z270 taichi motherboard?

Yes, that motherboard can support this NVME type m.2.

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Samsung PM981 Polaris 256GB M.2 NGFF PCIe Gen3 x4, NVME SSD, OEM (2280) MZVLB256HAHQ-00000 - OEM

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Capacity: 256GB
Interface: PCI Express Gen3 x4
Sequential Read: Up to 2800 MB/s
Sequential Write: Up to 1100 MB/s
Random Read: Up to 250K IOPS
Random Write: Up to 180K IOPS

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Samsung-IMSourcing PM981 256 GB Solid State Drive - M.2 Internal - PCI Express (PCI Express 3.0 x4)Storage Capacity: 256 GBWireless LAN: NoDrive Interface: PCI ExpressDrive Interface Standard: PCI Express 3.0 x4Drive Type: InternalForm Factor: M.2

Model
Brand	SAMSUNG
Series	PM981
Part Number	MZVLB256HAHQ-00000
Device Type	Internal Solid State Drive (SSD)
Used For	consumer/enterprise

Details
Form Factor	M.2 2280
Capacity	256GB
Memory Components	3D NAND
Interface	PCI Express Gen3 x4
Controller	Samsung Polaris V2

Performance
Max Sequential Read	Up to 2800 MB/s
Max Sequential Write	Up to 1100 MB/s
4KB Random Read	Up to 250K IOPS
4KB Random Write	Up to 180K IOPS

Features
Features	AES-XTS 256-bit Hardware-based Encryption Engine TCG/Opal V2.0 UBER: <1 sector per 10^15 bits read Max. Non-operating Shock1500G (0.5ms duration with 1/2 sine wave)Supply Voltage / Tolerance: +3.3V ± 5%

Additional Information
First Listed on Newegg	April 29, 2020

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Samsung PM981 Polaris 256GB M.2 NGFF PCIe Gen3 x4, NVME SSD, OEM (2280) MZVLB256HAHQ-00000 - OEM

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Warranty, Returns, And Additional Information

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Item#: 0D9-0009-002R4

Samsung PM981 Polaris 256GB M.2 NGFF PCIe Gen3 x4, NVME SSD, OEM (2280) MZVLB256HAHQ-00000 - OEM

Learn more about the Detailed Specifications

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies

Manufacturer Contact Info