為什麼這篇thunderbolt 4 ssd外接硬碟鄉民發文收入到精華區:因為在thunderbolt 4 ssd外接硬碟這個討論話題中,有許多相關的文章在討論,這篇最有參考價值!作者wolflsi (港都狼仔)看板PC_Shopping標題Fw: [心得] ACASIS TBU...
※ [本文轉錄自 Storage_Zone 看板 #1YNK9xwX ]
作者: wolflsi (港都狼仔) 看板: Storage_Zone
標題: [心得] ACASIS TBU401 USB4 SSD外接盒
時間: Mon Apr 18 18:50:33 2022
狼窩好讀版:
https://wolflsi.pixnet.net/blog/post/70040628
ACASIS TBU401 USB4 SSD外接盒搭ASUS ThunderboltEX4擴充卡測試
https://i.imgur.com/3gqSrqs.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/3gqSrqsl.jpg?e=1722553852&s=MAG0wBBEYJgy2rmAaWPoAw)
●支援Thunderbolt 3及USB4,傳輸速度最高40Gbps,亦可相容USB3.2介面並提供最高
10Gbps傳輸速度
●雙控制器設計,自動依傳輸介面切換Intel JHL7440 Thunderbolt 3控制器或是
Realtek RTL9210B-CG橋接器
●支援2280 M.2 M key及B+M key NVMe SSD
●隨附1條50公分Thunderbolt 3 100W傳輸線,降低購置成本
●免工具快速拆裝設計的CNC加工全鋁合金陽極處理外殼,可提供良好散熱
●支援Windows/Mac/Linux作業系統,隨插即用
▼外盒正面有商標、40Gbps字樣、產品名稱、產品/線材外觀圖、特點圖示、型號
https://i.imgur.com/tYysARw.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/tYysARwl.jpg?e=1722552493&s=2zzxx_V0TGaX4MqwzKmHSg)
號、條碼
https://i.imgur.com/GfIc1Ok.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/GfIc1Okl.jpg?e=1722607806&s=eo7-fB5AialqZLDl6VUBaA)
https://i.imgur.com/3qkta6H.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/3qkta6Hl.jpg?e=1722568584&s=oD4gGLv1TXpsstIdm7q2tw)
https://i.imgur.com/a5Ro4Uh.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/a5Ro4Ul.jpg?e=1722577612&s=o7Tl-_WBVu44pQ9hUScfxg)
Thunderbolt 3傳輸線
https://i.imgur.com/2AhnZPK.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/2AhnZPKl.jpg?e=1722600526&s=rLGeUYyau9O26jDcD8-iLg)
https://i.imgur.com/GVschSa.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/GVschSal.jpg?e=1722557529&s=4WXHr33L-U--9b8D8UPraQ)
32.9x12.3x6.5mm
https://i.imgur.com/CbsWDUz.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/CbsWDUzl.jpg?e=1722583134&s=rRxydhUVMJ9Ob7Zqy6gnqA)
傳輸及20V/5A電力傳輸
https://i.imgur.com/n5XAQVi.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/n5XAQVil.jpg?e=1722577652&s=4n-Kf3mxf2IKidrxY6Su4A)
並經過CNC加工與陽極處理,正面有商標,背面有商標、產品名稱、型號(TBU401S)、序號
、官網網址、產地
https://i.imgur.com/4Ia3RQb.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/4Ia3RQbl.jpg?e=1722561320&s=9GoV23tM3VvrjL4PtE1A3A)
USB 4.0字樣、讀寫指示燈小孔,另一個短邊側面有OPEN字樣及開啟箭頭方向指示
https://i.imgur.com/cMAy7jf.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/cMAy7jfl.jpg?e=1722573039&s=IGrvDTjUEa96oWYya37T9w)
https://i.imgur.com/O2uLaKI.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/O2uLaKIl.jpg?e=1722568747&s=C4cIAe1gYaKECbuG8lGyiQ)
箭頭方向指示(紅色箭頭)施力,就可掀開背面蓋子
https://i.imgur.com/HvJysyZ.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/HvJysyZl.jpg?e=1722595471&s=_ellXItG-ov4IIlt9_y_ig)
簧鋼珠(紅色箭頭),會卡住本體兩側內面同位置的凹槽(綠色箭頭),所以不用任何螺絲或
滑動卡榫就可固定背面蓋子
https://i.imgur.com/6FRyUJj.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/6FRyUJjl.jpg?e=1722554152&s=5pe2eQLpnhtTwaIASTcVAw)
https://i.imgur.com/71J6xgG.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/71J6xgGl.jpg?e=1722578898&s=a1Y6WX5hZGKq0rX94SzxOQ)
Ridge) Thunderbolt 3控制器可提供PCIe3.0 x4傳輸介面。德儀TPS65983BA為
Thunderbolt 3/USB Type-C及PD控制器/功率開關/高速多工器。Realtek RTL8210B-CG為
USB3.2 Gen2至PCIe3.0 x2橋接器。Asmedia ASM1480為PCIe3.0切換開關。Skyworks
SI52112-B6為雙輸出PCIe3.0時脈產生器。SGMICRO SGM7222為USB2.0(480Mbps)雙刀雙擲
類比開關。Winbond W25Q80DV 8Mbits Serial Flash用來存放Intel控制器韌體。PUYA
P25Q40SH 4Mbits Serial Flash用來存放Realtek控制器韌體
https://i.imgur.com/JTpLpiy.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/JTpLpiyl.jpg?e=1722577908&s=Nz5kFPppUO9yIgeyB-UVDg)
https://i.imgur.com/TxtSaBO.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/TxtSaBOl.jpg?e=1722565183&s=TX_9jHTpNr_J1sY-FlLzBg)
首先傾斜一個角度將SSD插入插槽,之後將SSD固定用橡膠塞(紅色箭頭)放在SSD頂端半圓
開口內,然後下壓橡膠塞至電路板銀色孔洞內
https://i.imgur.com/13vqhLu.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/13vqhLul.jpg?e=1722612408&s=q5ZYhbfGHaoHN8ZASmva3A)
導熱墊片,捏著導熱墊片兩面的白色標籤處拉開就可將保護膠膜撕除,然後把導熱墊片貼
上並完全覆蓋SSD正面,就可蓋回背面蓋子
https://i.imgur.com/3MnvIew.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/3MnvIewl.jpg?e=1722599779&s=yYKcz2ask5rCJJoMknRzLA)
輸速度,那一般的電腦沒有Thunderbolt/USB4怎麼辦呢?如果用的是ASUS支援
Thunderbolt/USB4擴充的主機板,可以安裝ASUS ThunderboltEX 4雷電4雙埠擴充卡來增
加Thunderbolt/USB4的連接能力
ASUS ThunderboltEX 4雷電4雙埠擴充卡特色:
●Intel認證Thunderbolt 4擴充卡,最高40Gbps雙向頻寬,提供高速資料傳輸及高解析視
訊輸出
●雙Thunderbolt 4連接埠(Type-C),每埠支援最多5個菊鏈連接的Thunderbolt裝置,並
相容USB4裝置
●提供最高100W(TYPE C_1)及27W(TYPE C_2)電力輸出
●支援DisplayPort 1.4,提供8K Ultra HD影像輸出
產品規格:
控制器:Intel JHL8540 Thunderbolt 4控制器
外部連接埠:2個Type-C連接埠,支援Thunderbolt 4及USB4,最高40Gbps傳輸速度
電力輸出:TYPE C_1提供最高20V/5A 100W輸出,TYPE C_2提供最高9V/3A 27W輸出
外部影像輸入連接埠:2個mini DisplayPort輸入埠
內部供電用連接埠:1個PCIe 6P電源插座
內部信號連接埠:1個USB2.0插針,1個14-1pin Thunderbolt插針
匯流排:PCIe 3.0 x4
影像輸出:支援DisplayPort 1.4,最高解析度8K(7680x4320)@60Hz(依照影像信號來源決
定最高解析度)
配件:2條mini DisplayPort連接線(將內建/獨立顯示卡DisplayPort影像輸出至
ThunderboltEX 4擴充卡)、1條USB2.0插針連接線、1條14-1pin Thunderbolt插針連接線
、1本使用說明書、1張驅動程式軟體光碟
相容主機板:ThunderboltEX 4僅支援ASUS內建14-1pin Thunderbolt插針的主機板,購買
前要先行確認
相容作業系統:64位元Windows 11/10
▼ASUS ThunderboltEX 4雷電4雙埠擴充卡支援主機板列表:
https://i.imgur.com/3Jy1Bu0.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/3Jy1Bu0l.jpg?e=1722605586&s=AEbCHoze0gt1pOCLufnwTA)
https://i.imgur.com/N8Wf2Ih.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/N8Wf2Il.jpg?e=1722561420&s=1gG7ISnVPQBmeShIa4rIbQ)
表、認證標章、網站連結QR碼、廠商聯絡資訊、商標
https://i.imgur.com/USVnv9O.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/USVnv9Ol.jpg?e=1722588490&s=Ns-iRNS-Q5QkH2fIzUZV8A)
https://i.imgur.com/W8lhrZh.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/W8lhrZl.jpg?e=1722563469&s=kfiXvD8nzgY3mtuJ6X7lAg)
https://i.imgur.com/41RN0H6.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/41RN0H6l.jpg?e=1722613151&s=MFkrFvUDyeEIsNLrmPpOFg)
https://i.imgur.com/U72kLeO.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/U72kLeOl.jpg?e=1722579017&s=GrBkx9hHqwFrf1PI5ZOiAg)
mini DisplayPort輸入埠(MINI DP IN_1、MINI DP IN_2)。另外一端由左至右分別為
14-1pin Thunderbolt插針、USB2.0插針、PCIe 6P電源插座
https://i.imgur.com/u5P1Fzp.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/u5P1Fzpl.jpg?e=1722603451&s=VS3O217LwbgwrbCeCoHdMA)
https://i.imgur.com/vGrcYUW.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/vGrcYUWl.jpg?e=1722558655&s=bHcLAXL-Y7MmrLUO6M6ewA)
Thunderbolt 4控制器,匯流排介面為PCIe3.0 x4,可提供2個Thunderbolt 4連接埠,具
備2個DP顯示輸入。Infineon(原CYPRESS)CYPD5225-96BZXI為EZ-PD CCG5系列雙埠USB
Type-C及PD協議介面控制器。ON Semi NCP81239為USB PD升降壓控制器,共有2顆,每個
連接埠配置1顆,每顆ON Semi NCP81239配置4顆ON Semi NTMFS5C460NL MOSFET負責電力
轉換。MXIC MX25V8035F為8Mbit Serial Flash,用來存放韌體。後固定檔板與連接埠之
間覆蓋導電抗干擾膠帶
https://i.imgur.com/GPav6Kn.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/GPav6Knl.jpg?e=1722581199&s=BPBeK2QnTfxnCNfETaRoQQ)
https://i.imgur.com/8Y36xMe.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/8Y36xMel.jpg?e=1722607188&s=2osztQKDiGoZ-XaI46piLg)
DisplayPort影像信號接至ASUS ThunderboltEX 4擴充卡的mini DisplayPort連接線、1條
USB2.0插針連接線、1條14-1pin Thunderbolt插針連接線
https://i.imgur.com/AJGHcuk.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/AJGHcukl.jpg?e=1722589333&s=Lina2c3sy0QySe7HozU5ow)
https://i.imgur.com/L7qfDyg.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/L7qfDygl.jpg?e=1722587602&s=cfWWYdQB4J_Zrj3N-w-YjQ)
https://i.imgur.com/HPkbvxF.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/HPkbvxFl.jpg?e=1722558863&s=8ql58qp-xrLg_Anp_ciFww)
ThunderboltEX 4擴充卡上的14-1pin Thunderbolt插針(左)及USB2.0插針(右)
https://i.imgur.com/RPcmVdW.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/RPcmVdWl.jpg?e=1722599397&s=eNZ_0ZQSzMQUrDhTFVV6iw)
(綠色插針)
https://i.imgur.com/Jf5oyNT.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/Jf5oyNTl.jpg?e=1722589293&s=KfzZ_tNasMo9HXDHtJ4hJA)
TB_HEADER插針(紅色箭頭)及內接USB2.0插針(綠色箭頭)
https://i.imgur.com/duGo7fD.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/duGo7fDl.jpg?e=1722602316&s=ckFxtgLQyifYl7py92fOMw)
https://i.imgur.com/2vFX8TP.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/2vFX8TPl.jpg?e=1722610810&s=8eps7dORb429j_RZE5O7yg)
ThunderboltEX 4擴充卡的MINI DP IN_1/2輸入埠
https://i.imgur.com/p4Rh36w.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/p4Rh36wl.jpg?e=1722593332&s=rNLrsOhfH1onzBUv5jxvNA)
”Advanced\Thunderbolt(TM) Configuration”頁面,將”Discrete Thunderbolt(TM)
Support”選項”Enable”,同時確認”Advanced\System Agent(SA) Configuration”頁
面中”Control Iommu Pre-boot Behavior”選項為”Enable IOMMU during boot”,確
保DMA保護有啟用
https://i.imgur.com/FiJbAzf.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/FiJbAzfl.jpg?e=1722579040&s=6Mxo2WNB6AUyK76T83Ih1g)
Configuration”頁面(上)及”Advanced\Thunderbolt(TM) Configuration\Discrete
Thunderbolt(TM) Configuration\DTBT Controller 0 Configuration ”頁面(下)
https://i.imgur.com/MUtDnbV.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/MUtDnbVl.jpg?e=1722582612&s=csa8hX__tm__7qf6pW3Vzw)
https://i.imgur.com/Sz2IFDC.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/Sz2IFDCl.jpg?e=1722558403&s=6mYPAtPQYcnZ99CJNQBcbw)
方三條橫線處,可顯示詳細資料、核准Thunderbolt裝置、管理已核准Thunderbolt裝置
https://i.imgur.com/aOpnzi6.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/aOpnzi6l.jpg?e=1722571483&s=-0UXXai8j7pXXuVlz7y-Aw)
Maximum Payload Size為128bytes,目前Maximum Payload Size為128bytes
https://i.imgur.com/PeHTS8s.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/PeHTS8sl.jpg?e=1722602761&s=BQKA0CIInbCG0MfD6WflAA)
15V/3A、20V/5A,最高100W輸出
https://i.imgur.com/ozHiQvF.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/ozHiQvFl.jpg?e=1722598113&s=qvOxRkqQYapn6qq2sgeN3g)
最高27W輸出
https://i.imgur.com/uGmSQ8d.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/uGmSQ8dl.jpg?e=1722565275&s=2i9Y6qdKQnX0NHDsXpwbcQ)
處理器:Intel Core i7-12700K
主機板:ASUS ROG STRIX Z690-A GAMING WIFI D4
記憶體:tigo X3 DDR4-3600 8GB * 2
作業系統碟:Seagate FireCuda 530 1TB散熱片版
Thunderbolt 4介面卡:ASUS ThunderboltEX 4擴充卡
電源供應器:BitFenix Formula Gold 750W
▼ASUS ThunderboltEX 4擴充卡TYPE C_1接上Thunderbolt 3傳輸線
https://i.imgur.com/0Jqf3GD.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/0Jqf3GDl.jpg?e=1722608273&s=jP2UrdXudIdyn8D1w3X3gA)
TBU401 USB4 M.2 NVMe SSD 40Gbps外接盒後,連接埠旁小孔內的綠色指示燈會點亮,傳
輸時會閃爍
https://i.imgur.com/mSGOiPZ.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/mSGOiPZl.jpg?e=1722587499&s=FLueIg7Es-Ipb5-5fHLY5w)
(TBU401/TBU401S)文字排列略有不同
https://i.imgur.com/gMA85y8.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/gMA85y8l.jpg?e=1722591729&s=4xlrcTg6kXucR9iCmczoEg)
PCIe3.0 x4 8GT/s連接速度,目前連接速度為PCIe3.0 x4 2.5GT/s,支援Maximum
Payload Size為128bytes,目前Maximum Payload Size為128bytes
https://i.imgur.com/STjv4Vo.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/STjv4Vol.jpg?e=1722591138&s=sHb0Sca4oCzsrdjM9kEo4A)
x4 8GT/s連接速度,目前連接速度為PCIe3.0 x4 8GT/s,支援Maximum Payload Size為
128bytes,目前Maximum Payload Size為128bytes
https://i.imgur.com/Or2AXLT.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/Or2AXLTl.jpg?e=1722595272&s=ohsFUfXb2Nph2qYkziGrjw)
接速度,目前連接速度為PCIe3.0 x4 8GT/s,支援Maximum Payload Size為256bytes,目
前Maximum Payload Size為128bytes
https://i.imgur.com/rvUeAtM.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/rvUeAtMl.jpg?e=1722552466&s=9VjRsLvZtRn1Cbw5y-OncQ)
https://i.imgur.com/0Fz4dyd.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/0Fz4dydl.jpg?e=1722562193&s=5r9ARxFM7KUpP0F-CO4ztA)
https://i.imgur.com/IuOnGGf.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/IuOnGGfl.jpg?e=1722593993&s=AzAxnfupsGd-D8AxU2jbsQ)
者連接至PCIe4.0(紅色箭頭)
https://i.imgur.com/IhVuQpY.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/IhVuQpYl.jpg?e=1722604840&s=Y-cUjUbqDS9G8KWDAvtmKw)
980 PRO 1TB的初次測試CrystalDiskMark預設+R70%/W30% Mix結果,可以看到寫入速度偏
低非常多
https://i.imgur.com/1s7kjaK.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/1s7kjaKl.jpg?e=1722604432&s=C8EF_bKx6s1-nWdyPD8QCw)
值為”快速移除”並停用寫入快取支援(左圖)。若要達到最高效能,要把移除原則改成”
效能更好”並勾選”在裝置上啟用寫入快取”方塊(右圖)
https://i.imgur.com/ZCaFF01.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/ZCaFF01l.jpg?e=1722586881&s=Ev3cuFc525nZwtVyxP6DJA)
Thunderbolt傳輸並搭配Samsung 980 PRO 1TB的CrystalDiskMark預設+R70%/W30% Mix測
試,寫入速度已接近讀取速度
https://i.imgur.com/PLhyyyL.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/PLhyyyLl.jpg?e=1722564535&s=IveMuKHIn5zqG-xEXfkvuA)
980 PRO 1TB的CrystalDiskMark真實世界效能+R70%/W30% Mix測試,寫入略勝讀取一點
https://i.imgur.com/C8aOqMp.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/C8aOqMpl.jpg?e=1722568839&s=bNZXLtPorOP343l_1tdOYg)
https://i.imgur.com/095eaJ7.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/095eaJ7l.jpg?e=1722603219&s=Me1SDvxO-XiW1sAj5kfnBA)
https://i.imgur.com/P1sS0Ny.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/P1sS0Nyl.jpg?e=1722549778&s=wJmyD698-qpWlA-DH3tPwg)
980 PRO 1TB”
https://i.imgur.com/4QETdWL.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/4QETdWLl.jpg?e=1722580061&s=aI8M2S0ozUmi_N4R5jWKlA)
於是就裝進ACASIS TBU401 USB4 M.2 NVMe SSD 40Gbps外接盒試試看
https://i.imgur.com/I4Pvhpg.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/I4Pvhpgl.jpg?e=1722590252&s=wOnaptWrdKnyawGqvLsoVA)
目前連接速度為PCIe3.0 x4 8GT/s,支援Maximum Payload Size為512bytes,目前
Maximum Payload Size為128bytes(紅色箭頭)。之前有發生過WD SN850在Maximum
Payload Size為128bytes的環境中會發生效能降低的情形,有點好奇是否是此原因才加入
不相容列表
https://i.imgur.com/wYrPNjn.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/wYrPNjnl.jpg?e=1722612620&s=aH6NqyzYSy-9b6VLz3yuJA)
https://i.imgur.com/o2jVwI7.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/o2jVwI7l.jpg?e=1722576166&s=_9zKWMTepAilvudalv4P7Q)
PCIe3.0 x4(紅色箭頭)
https://i.imgur.com/ALQM2Eq.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/ALQM2Eql.jpg?e=1722573925&s=n7nJ1xDwxs9G6vaq1cZdKg)
1TB的CrystalDiskMark預設+R70%/W30% Mix測試,可以看到SEQ1M Q8T1寫入差異不大,但
SEQ1M Q1T1、RND4K Q32T1、RND4K Q1T1的寫入速度與IOPS,相較於980 PRO 1TB均明顯較
差。R70%/W30% Mix方面,SEQ1M Q1T1及RND 4K Q1T1也是一樣較差,不過讀取則是沒有問
題,讀取RND表現略好一點
https://i.imgur.com/mfkoRj1.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/mfkoRj1l.jpg?e=1722608840&s=ODN4R21wouPbm06gBa6D6w)
1TB的CrystalDiskMark真實世界效能+R70%/W30% Mix測試,可以看到相較於980 PRO 1TB
,WD SN850的寫入速度、IOPS、延遲均明顯較差。R70%/W30% Mix方面也是一樣較差,不
過讀取則是沒有問題,讀取RND表現略好一點
https://i.imgur.com/ervgrwc.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/ervgrwcl.jpg?e=1722586860&s=fdd6t-cX_hQqiJ-DBZTuxQ)
https://i.imgur.com/djzxFSa.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/djzxFSal.jpg?e=1722551634&s=FQpsz3dGeJpy3WjBkTsguw)
https://i.imgur.com/CcvxPI3.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/CcvxPI3l.jpg?e=1722581840&s=Fcz4pAktOtt24DLZclDmVQ)
Thunderbolt 3/4外,也可向下相容USB3.2,當ACASIS TBU401 USB4 M.2 NVMe SSD
40Gbps外接盒接上主機板USB3.2 Gen2x2連接埠時,會變成透過內部Realtek
RTL9210B-CG USB橋接器連接
https://i.imgur.com/gBsmVfg.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/gBsmVfgl.jpg?e=1722559890&s=A_Rdf4b29SZGveuGoCE4iw)
橋接器連接主機板USB3.2 Gen2x2連接埠的CrystalDiskMark預設+R70%/W30% Mix測試,可
達USB3.2 Gen2理論頻寬10Gbps速度
https://i.imgur.com/vfwGQsR.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/vfwGQsRl.jpg?e=1722571500&s=C47qL2dMdCHl70XpW7nwJg)
橋接器連接主機板USB3.2 Gen2x2連接埠的CrystalDiskMark真實世界效能+R70%/W30% Mix
測試,可達USB3.2 Gen2理論頻寬10Gbps速度
https://i.imgur.com/kJMpCGY.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/kJMpCGYl.jpg?e=1722560093&s=ZL0aUBp2VAGRytwywjHl3w)
也可向下相容USB3.2裝置。下面示範ASUS ThunderboltEX 4擴充卡透過Thunderbolt 3傳
輸線連接USB3.2 Gen2的ADATA EC700G SSD外接盒
https://i.imgur.com/QP6ldjh.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/QP6ldjl.jpg?e=1722593443&s=6Bsm5TcnC6Z1qEqhlK5Q2g)
https://i.imgur.com/qyermw9.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/qyermw9l.jpg?e=1722608092&s=RsU57rQKkOdi6uP_-V5Tww)
https://i.imgur.com/xAvZii0.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/xAvZii0l.jpg?e=1722592015&s=9wZKLQrYOrA_0XhaHBiH5A)
CrystalDiskMark預設+R70%/W30% Mix測試,可達USB3.2 Gen2理論頻寬10Gbps速度
https://i.imgur.com/cBKknju.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/cBKknjul.jpg?e=1722584042&s=u-wRpi-zSuWHH7Ix7SuqbQ)
CrystalDiskMark真實世界效能+R70%/W30% Mix測試,可達USB3.2 Gen2理論頻寬10Gbps速
度
https://i.imgur.com/EfzLjfj.jpg
![](https://cache.ptt.cc/c/https/i.imgur.com/EfzLjfjl.jpg?e=1722562045&s=cIx0OUzB6Aab5UHoDV3Qrw)
結論:
ACASIS TBU401 USB4 M.2 NVMe SSD 40Gbps外接盒支援USB4,除了可以連接Thunderbolt
3/4發揮最高40Gbps傳輸效能外,也可向下相容USB3.2介面並達到最高10Gbps傳輸速度,
Thunderbolt 3/4傳輸下可正常透過SSD原廠工具程式進行監控,全鋁合金CNC加工與陽極
處理外殼能散發SSD運作時的熱量,免工具快速拆裝設計方便進行安裝,隨附
Thunderbolt 3 100W傳輸線可減少額外添購的成本。不過受限於Thunderbolt 3/4介面的
Maximum Payload Size僅有128bytes,對於部分SSD會產生寫入速度下降的狀況,同時因
為Windows 10/11預設的快速移除設定,需進行手動更改成效能更好的模式並開啟寫入快
取,方可發揮最大寫入效能
ASUS ThunderboltEX 4雷電4雙埠擴充卡,通過Intel Thunderbolt 認證,雙
Thunderbolt 4連接埠(Type-C),每埠支援最多5個菊鏈連接的Thunderbolt裝置,並相容
USB4及USB3.2裝置,最高40Gbps雙向頻寬,提供高速資料傳輸、DisplayPort 1.4 8K
Ultra HD高解析視訊輸出及最高100W(TYPE C_1)及27W(TYPE C_2)電力輸出。不過需要搭
配特定型號主機板,選購前需要確認目前使用的主機板是否可以支援
報告完畢,謝謝收看
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※ 轉錄者: wolflsi (220.142.172.64 臺灣), 04/18/2022 19:10:41