# U.2

Published articles for U.2.

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## ADT R27A-BK3 U.2 to PCIe Adapter Review

DevFeed: [ADT R27A-BK3 U.2 to PCIe Adapter Review](<https://devfeed.tech/articles/adt-r27a-bk3-u-2-to-pcie-adapter-review-99000.md>)

Original publisher: [Read original article](<https://www.servethehome.com/adt-r27a-bk3-u-2-to-pcie-slot-review/>)

Author: Eric Smith

Published: 2026-10-24T18:55:55Z

Content type: article

Language: en

Sources: [ServeTheHome](<https://devfeed.tech/sources/servethehome.md>)

Topics: [NVMe](<https://devfeed.tech/topics/nvme.md>), [pcie](<https://devfeed.tech/topics/pcie.md>)

Tags: [adapter](<https://devfeed.tech/tags/adapter.md>), [card](<https://devfeed.tech/tags/card.md>), [cooling](<https://devfeed.tech/tags/cooling.md>), [nvme](<https://devfeed.tech/tags/nvme.md>), [nvme-ssd](<https://devfeed.tech/tags/nvme-ssd.md>), [pcie](<https://devfeed.tech/tags/pcie.md>), [performance](<https://devfeed.tech/tags/performance.md>), [review](<https://devfeed.tech/tags/review.md>), [ssd](<https://devfeed.tech/tags/ssd.md>), [storage](<https://devfeed.tech/tags/storage.md>), [test](<https://devfeed.tech/tags/test.md>), [u-2](<https://devfeed.tech/tags/u-2.md>)

### AI overview

The ADT R27A-BK3 adds a U.2 NVMe drive to a system with a standard PCIe slot. Its enclosed metal shell holds a blower fan and an SFF-8639 connector, so it supports U.2 drives; the separate EDSFF adapter uses SFF-TA-1002 for E1.S and E3.S drives. In 20-minute tests, a Gen3 Samsung drive sustained 2,179 MB/s at up to 78°C, while a Gen5 Solidigm drive sustained 7,838 MB/s at 70°C. Neither showed sustained thermal throttling or reached its warning temperature. The review recommends checking the drive type and PCIe generation when choosing a version, and verifying cooling with hotter drives.

### Source excerpt

We test the cheap ADT R27A-BK3 card to see what the U.2 SSD to PCIe card slot adapter offers, and how the cooling works The post ADT R27A-BK3 U.2 to PCIe Adapter Review appeared first on ServeTheHome.