200904304 ττ a. .2twjf.doc/n 九、發明說明： 【發明所屬之技術領域】 本發明是有關於-種電腦週邊的電子震置 有關於一種擴充卡及擴充卡固定結構。 ，疋 【先前技術】 隨者半導體產業的蓬勃获展，Φ J2. at TO 夕， 展電子裝置皆朝向小型、 發展。然而’桌上型電腦由於價格低廉、 祕大、擴充性南等，健在飼服器等市場上姑有一 席之地。 料若是要減桌上__魏，大都是使用擴 ^卡的方式’例如；ρα、AGp等介面之擴充卡。但是，在 =兀=度較高的錬器中，常會_容置空間不足的 此—些轉接用的擴充卡，例如為硬碟擴充卡，會 板分為兩料，並錄板，喊高擴充卡配 f 1為習知-種硬碟擴充卡的立體圖。請參照圖卜 π、硬碟擴充卡100具有一第一電路板11〇、一第二電 =反12G/X及—·連接第—電路板11G以及第二電路板 第一電路板110上具有多個硬碟連接11 ，第一電路板12〇上具有一端子組122，其中硬 2 接至硬碟(未'㈣），而端子組122則插 連接。之—插槽（未纷示），使硬碟與主機板電性 200904304 υ/υ^ο.χ VV ^j-r2twf.d〇c/n 習知硬碟擴充卡！〇〇雖使用軟板130電性連接第一電 路板Π0以及第二電路板120以解決空間配置的問題，值 在使用硬碟擴充卡100時產生之應力容易造成軟板13〇與 第一電路板110或第二電路板120之連接處斷裂。 舉例而言’在將硬碟擴充卡100卸下時，由於插槽與 端子組122之間具有固定力，因此使用者需施加一定的應 力於第二電路板120以移除第二電路板120。然而，在拔 起第一電路板120時施加的應力無法透過軟板13〇傳遞至 第一電路板110。如此，會使第一電路板11〇與第二電路 板120之間產生相對位移而易造成軟板13〇與第—電路板 110或第二電路板12〇的連接處產生斷裂。 【發明内容】 本發明提供一種擴充卡及擴充卡固定結構，用以避免 軟板因受力而斷裂。 為解決上述問題，本發明提出一種擴充卡，用以組裝 至少一模組於一主機板上，上述擴充卡包括一第—電路 板、一第二電路板、一軟板以及一固定件。第一電路板用 以插設模組。第二電路板插設於主機板上。軟板電性連接 第—電路板與第二電路板。固定件固設於第一電路板與第 一電路板以軟板相連之交接處。 在本發明之一實施例中，上述固定件具有—第—側 板、至少一加強肋以及一第二側板，而加強肋固接於第一 側板與第二側板之間。 、 200904304 υ/υζ4».ι w ^^2twf.doc/n 在本發明之一實施例中，上述固定件具有一第一卡 鈎，而第一電路板具有一第一卡槽，其中第一卡鈎與第一 卡槽相卡合。 在本發明之一實施例中，上述固定件具有一第二卡 釣，而第二電路板具有一第二卡槽，其中第二卡鈎與第二 卡槽相卡合。 本發明另提出一種擴充卡，用以組裝至少一模組於一 主機板上，上述擴充卡包括一第一電路板、一第二電路板、 一軟板、一固定件、一第一扣件以及一第二扣件。第一電 路板用以插設模組，且第一電路板具有至少一第一槽孔。 第二電路板插設於主機板上，且第二電路板具有至少一第 一槽孔。軟板電性連接第一電路板與第二電路板。固定件 固没於第一電路板與第二電路板以軟板相連之交接處，固 疋件具有對應第一槽孔之一第一固定孔，且固定件具有對 應第二，孔之一第二固定孔。第一扣件固設於第一槽孔與 第固疋孔中。第一扣件固設於第二槽孔與第二固定孔中。 釘或ίΐΓ之—實施例中，上述第—扣件包括螺釘、柳 釘或實施财’上述第二扣件包括螺釘、柳 摄細明再提出—種擴充卡固定結構，用以組裝至少- 二二f機板ΐ ’擴充卡固定結構包括—硬碟框架、- 扩加$ &第二電路板、—軟板以及—固定件。硬碑 框木配置於域板上，且㈣框架具有至少—容置空=碟 200904304 υ/νζΗ〇.ι w ^HJH2twf.d〇c/n ::承Γ莫Ϊ二—電路板配置於硬碟框架上，用以插設 路板與第二電路板。固定件固設於第一電路m: 板以軟板相叙交接處。 魏板料二電路 在本發明之—實施射，上述固定件具有-第-側 板'至少-加強肋以及一第二侧板’而加強肋固接於第一 侧板與第二側板之間。 在本發明之一實施例中，上述固定件具有一第一卡 鈎，而第一電路板具有一第一_^槽，其中第一_^鈎與第一 卡槽相卡合。 在本發明之一實施例中，上述固定件具有一第二卡 鈎，而第二電路板具有一第二卡槽，其中第二卡鈎與第二 卡槽相卡合。 本發明因在第一電路板與第二電路板之間以軟板連 接處5又置固疋件，因此弟一電路板以及第二電路板之間 不會產生相對位移。換言之’使用者在組裝或拆卸本發明 之擴充卡時所施加的應力不會作用在軟板上。如此，可避 免因應力而造成軟板與第一電路板或第二電路板間連接處 之斷裂，進而提高擴充卡之可靠度。 為讓本發明之上述特徵和優點能更明顯易懂，下文特 舉實施例，並配合所附圖式，作詳細說明如下。 【實施方式】 圖2為本發明一實施例中之擴充卡固定結構的立體 200904304 v / rv/. x 1 f i2twf.doc/n 圖，圖3為圖2中之擴充卡的立體圖。請參照圖2及圖3， 擴充卡200用以將至少一模組（未繪示）組裝至一主機板 50上’而上述模組例如為硬碟、光碟機（c〇mpact disc rea(j only memory drive)、多樣化數位光碟機（digitalversatile disc drive)、磁光碟機（magneto-optical disc drive)等。 在本實施例中’擴充卡200可配合一硬碟框架300以形成 一擴充卡固定結構400，而硬碟框架300則具有一容置空 間310用以承載硬碟。另外，擴充卡2〇〇亦可獨立於硬碟 框架300外單獨使用。 承上述，擴充卡200包括一第一電路板210、一第二 電路板220、一軟板230以及一固定件240。第一電路板 210可具有多個電連接器212,用以插設模組，以使第一電 路板210與模組電性連接，而第一電路板21〇可藉由多個 固定槽216配置於硬碟框架3〇〇上。第一電路板210以軟 板230電性連接至第二電路板22〇，而第二電路板22〇可 具有一端子組222,且主機板50可具有一端子插槽52,端 子組222插設於端子插槽52而使第二電路板220與主機板 50電性連接’進而使模組與主機板5〇電性連接。固定件 240固設於第一電路板21〇與第二電路板22〇以軟板bo 相連之交接處。 由於本實施例之擴充卡200具有一固定件240固設於 第一電路板210與第二電路板220之交接處，因此在裝設 或拆卸擴充卡200時’施加在第一電路板21〇上的應力會 經由固定件240傳遞到第二電路板220，而施加在第二電 200904304 \j / \/ζ«-τν. -i »τ 2twf.doc/n 路板220上的應力亦會經由固定件240傳遞到第一電路板 210。換言之，即使第一電路板210或第二電路板220單獨 受到應力，第一電路板210與第二電路板220之間亦不會 產生相對位移。如此，軟板230與第一電路板210或第二 電路板220的交接處不會受到應力，而可避免軟板230與 第一電路板210或第二電路板220的交接處斷裂，進而提 高擴充卡200的可靠度。 圖4為圖3中固定件之立體圖。請參照圖3及圖4，200904304 ττ a. .2twjf.doc/n IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to an electronic vibration of a computer peripheral, relating to an expansion card and an expansion card fixing structure. , 疋 [Prior Art] With the booming exhibition of the semiconductor industry, Φ J2. at TO eve, the electronic devices are all oriented towards small and developed. However, due to the low price, the secret, and the expansion of the south, the desktop computer has a place in the market such as the feeding machine. If you want to reduce the table __ Wei, most of them use the method of expanding the card 'for example; ρα, AGp and other interface expansion cards. However, in a device with a higher degree of 兀=degree, the expansion card that is often insufficient for the storage space, such as a hard disk expansion card, is divided into two materials, and the board is screamed. The high expansion card with f 1 is a perspective view of a conventional hard disk expansion card. Referring to FIG. 3, the hard disk expansion card 100 has a first circuit board 11A, a second power=reverse 12G/X, and the first circuit board 11G and the second circuit board 110. A plurality of hard disk connections 11 have a terminal set 122 on the first circuit board 12, wherein the hard 2 is connected to the hard disk (not '(4)), and the terminal set 122 is plugged. - Slot (not shown), make the hard disk and the motherboard power 200904304 υ / υ ^ ο. χ VV ^ j-r2twf.d 〇 c / n conventional hard disk expansion card!使用 Although the first board Π0 and the second board 120 are electrically connected by the soft board 130 to solve the problem of the space configuration, the stress generated when the hard disk expansion card 100 is used is likely to cause the soft board 13〇 and the first circuit. The junction of the board 110 or the second circuit board 120 is broken. For example, when the hard disk expansion card 100 is removed, the user needs to apply a certain stress to the second circuit board 120 to remove the second circuit board 120 because of the fixing force between the slot and the terminal group 122. . However, the stress applied when the first circuit board 120 is pulled up cannot be transmitted to the first circuit board 110 through the flexible board 13A. Thus, a relative displacement between the first circuit board 11A and the second circuit board 120 is caused to cause breakage of the connection between the flexible board 13A and the first circuit board 110 or the second circuit board 12A. SUMMARY OF THE INVENTION The present invention provides an expansion card and an expansion card fixing structure for preventing the soft board from being broken due to stress. In order to solve the above problems, the present invention provides an expansion card for assembling at least one module on a motherboard. The expansion card includes a first circuit board, a second circuit board, a soft board, and a fixing member. The first circuit board is used to interpose the module. The second circuit board is inserted on the motherboard. The flexible board is electrically connected to the first board and the second board. The fixing member is fixed at the junction of the first circuit board and the first circuit board connected by the soft board. In an embodiment of the invention, the fixing member has a first side panel, at least one reinforcing rib and a second side panel, and the reinforcing rib is fixed between the first side panel and the second side panel. In the embodiment of the present invention, the fixing member has a first hook, and the first circuit board has a first card slot, wherein the first circuit board has a first card slot, wherein the first circuit board has a first card slot, wherein the first circuit board has a first card slot, wherein the first circuit board has a first card slot, and the first circuit board has a first card slot. The hook is engaged with the first card slot. In an embodiment of the invention, the fixing member has a second catch, and the second circuit board has a second card slot, wherein the second hook is engaged with the second card slot. The present invention further provides an expansion card for assembling at least one module on a motherboard. The expansion card includes a first circuit board, a second circuit board, a soft board, a fixing component, and a first fastening component. And a second fastener. The first circuit board is configured to insert the module, and the first circuit board has at least one first slot. The second circuit board is inserted on the motherboard, and the second circuit board has at least one first slot. The flexible board is electrically connected to the first circuit board and the second circuit board. The fixing member is fixed at the intersection of the first circuit board and the second circuit board connected by the soft board, the fixing member has a first fixing hole corresponding to one of the first slot holes, and the fixing member has a corresponding second, one of the holes Two fixing holes. The first fastener is fixed in the first slot and the first slot. The first fastener is fixed in the second slot and the second fixing hole. In the embodiment, the first fastening member includes a screw, a rivet or a shackle. The second fastening member includes a screw, and the shackle is re-proposed to expand the card fixing structure for assembling at least two. Two f-board ΐ 'Expansion card fixing structure includes - hard disk frame, - add $ & second circuit board, - soft board and - fixing parts. The hard monument frame wood is arranged on the domain board, and (4) the frame has at least - accommodation space = dish 200904304 υ / ν ζΗ〇. ι w ^ HJH2twf.d 〇 c / n :: 承 Γ Ϊ — — 电路 电路 电路 电路 电路 电路 电路 电路 电路 电路 电路 电路 电路 电路 电路 电路 电路On the disc frame, the road board and the second circuit board are inserted. The fixing member is fixed on the first circuit m: the board is at the junction of the soft board. In the present invention, the fixing member has a -first side panel 'at least a reinforcing rib and a second side panel' and the reinforcing rib is fixed between the first side panel and the second side panel. In an embodiment of the invention, the fixing member has a first hook, and the first circuit board has a first slot, wherein the first hook is engaged with the first slot. In an embodiment of the invention, the fixing member has a second hook, and the second circuit board has a second card slot, wherein the second hook is engaged with the second card slot. In the present invention, since the solid board is placed between the first circuit board and the second circuit board by the flexible board connection portion 5, no relative displacement occurs between the first circuit board and the second circuit board. In other words, the stress applied by the user when assembling or disassembling the expansion card of the present invention does not act on the flexible board. In this way, the breakage of the connection between the flexible board and the first circuit board or the second circuit board due to stress can be avoided, thereby improving the reliability of the expansion card. The above described features and advantages of the present invention will be more apparent from the following description. [Embodiment] FIG. 2 is a perspective view of a three-dimensional 200904304 v / rv/. x 1 f i2twf.doc/n of an expansion card fixing structure according to an embodiment of the present invention, and FIG. 3 is a perspective view of the expansion card of FIG. Referring to FIG. 2 and FIG. 3, the expansion card 200 is used to assemble at least one module (not shown) onto a motherboard 50, and the module is, for example, a hard disk or a CD player (c〇mpact disc rea (j Only memory drive), a digital versatile disc drive, a magneto-optical disc drive, etc. In this embodiment, the expansion card 200 can be coupled to a hard disk frame 300 to form an expansion card. The structure 400, and the hard disk frame 300 has an accommodating space 310 for carrying the hard disk. In addition, the expansion card 2 can also be used separately from the hard disk frame 300. In addition, the expansion card 200 includes a first The circuit board 210, a second circuit board 220, a soft board 230, and a fixing member 240. The first circuit board 210 can have a plurality of electrical connectors 212 for inserting the module so that the first circuit board 210 and the The module is electrically connected, and the first circuit board 21 is disposed on the hard disk frame 3 by a plurality of fixing slots 216. The first circuit board 210 is electrically connected to the second circuit board 22 by the flexible board 230. The second circuit board 22 can have a terminal group 222, and the motherboard 50 can have A terminal slot 52 is inserted into the terminal slot 52 to electrically connect the second circuit board 220 to the motherboard 50. The module is electrically connected to the motherboard 5. The fixing member 240 is fixed to the terminal. The first circuit board 21 is connected to the second circuit board 22 and connected by the soft board bo. The expansion card 200 of the embodiment has a fixing member 240 fixed to the first circuit board 210 and the second circuit board 220. The junction, therefore, the stress applied to the first circuit board 21A when the expansion card 200 is installed or removed is transmitted to the second circuit board 220 via the fixing member 240, and applied to the second electric 200904304 \j / \/ ζ«-τν. -i »τ 2twf.doc/n The stress on the board 220 is also transmitted to the first circuit board 210 via the fixing member 240. In other words, even if the first circuit board 210 or the second circuit board 220 is individually subjected to The stress does not cause relative displacement between the first circuit board 210 and the second circuit board 220. Thus, the interface between the soft board 230 and the first circuit board 210 or the second circuit board 220 is not stressed, and can be avoided. The interface between the flexible board 230 and the first circuit board 210 or the second circuit board 220 is broken, thereby The reliability of the expansion card 200. Figure 4 is a perspective view of the fixture of FIG. 3. Referring to FIGS. 3 and 4,
m I ' 固定件240可具有一第一側板240a、一第二側板240b以 及一加強肋240c固接於第一側板240a以及第二侧板240b 之間’用以加強固定件240之剛性。 除此之外，固定件240更可具有多個第一卡鈎242， 其中第 ^鈞242可配置於第一側板240a上，且在第一電 路板210上可具有一第一-^槽214，而第——^鈎242與第 一·^槽214相卡合可將固定件240固定在第一電路板210 上，且第一"^鈎242例如可與第一·^槽214之水平邊緣接 U 觸。另外’第二電路板220上可具有多個第二槽孔224， 而固定件240之第二側板240b上則可具有對應於第二槽孔 224所設置之多個第二固定孔244,且擴充卡200更具有多 個第二扣件250固設於第二槽孔224與第二固定孔244 中，以將固定件240固定於第二電路板22〇上。在本實施 例中，第一扣件250為卡榫，如此可簡化固定件與第 二電路板220之組裝。此外，第二扣件25〇亦可以其他方 式實施，例如可以螺釘、鉚釘、塑膠釘等做為第二扣件 200904304 w,------ 2twf.doc/n 250’以使固定件240更穩固的固定在第二電路板22〇上。 另外’固定件240更可具有多個支撐件246，而支撐 件246可配置於第一側板240a上。支撐件246可插入第〆 卡槽214中，並與第一卡槽214之垂直邊緣接觸。支樓件 246上更可具有突塊246a，而突塊246a具有一垂直面 246b，可與第一^^鉤242配合，由不同方向固定於第一卡 槽214，以使固定件240固定於第—^槽214時，可以有 、良好的定位效果。 值得注意的是，雖然圖2、圖3及圖4中以第·__^釣 242、第一卡槽214、第二槽孔224、第二固定孔244以及 第一扣件250為例說明固定件240固設於第一電路板21〇 以及第二電路板220之方法’但固定件240亦可以其他方 式固設於第一電路板210與第二電路板220上。 舉例而言，在本發明一未緣示之實施例中，固定件之 第一側板上可具有多個第二卡鈎，而在第二電路板上可具 有弟—卡槽，而第二卡鈎與第二卡槽相卡合將固定件固 ) 疋在第二電路板上。此外’第一電路板上可具有多個第一 槽孔，而固定件之第一側板則具有對應於第一槽孔所設置 之多個第一固定孔，且擴充卡更具有多個第一扣件固設於 第一槽孔與第一固定孔中，以將固定件固定於第一電路板 上，其中第二卡鈎、第二卡槽、第一槽孔、第一固定孔以 及第一扣件之實施方式可參考圖3及圖4之第一卡鈎 242、第一卡槽214、第二槽孔224、第二固定孔244以及 第二扣件250。 11 200904304 v / χ ** λ*-ι^ r2twjf!doc/zi 另外，上述第一卡鈎、第—卡槽、第二卡鈎、第二卡 槽、第一槽孔、第二槽孔、第—固定孔、第二固定孔、第 一扣件、第二扣件以及加強肋之數量並不以上述實施例中 舰為限’所屬技術領域中具有通常知識者可依需求以其 他數量配置，例如僅使用一第二槽孔、一第二固定孔以及 一第二扣件。 綜上所述，由於本發明之擴充卡具有一固定件固設於 〇 帛—電路板與第二電路板之間讀板連減，因此使用者 纟、、’ι裝或拆卸本發$之擴充卡時所施加的應力會經由固定 件由第一電路板傳遞到第二電路板，或是由第二電路板傳 f到第-電路板。換言之’即使第—電路板或第二電路板 單獨受到應力’第-電路板與第二電路板之間亦不會產生 相對位移。如此，軟板與第一電路板或第二電路板二交接 處不會受到應力’而可避免軟板與第一電路板或第二電路 板的父接處斷裂，進而提高擴充卡的可靠度。 雖然本發明已以實施例揭露如上，然其並非用以限定 G 本發明，任何所屬技街領域中具有通常知識者，在 本發明之精神和範圍内，當可作些許之更動與潤掷 本發明之保護範圍當視後附之申請專利範圍所界定者為 【圖式簡單說明】 圖1為習知一種硬碟擴充卡的立體圖。 圖2為本發明—實施财之擴充卡©定結構的立體 12 200904304 »τ ^ doc/π 圖3為圖2中之擴充卡的立體圖。 圖4為圖3中固定件之立體圖。 【主要元件符號說明】 50 :主機板 52 :端子插槽 100 :硬碟擴充卡 f ’ 110 :第一電路板 112 :硬碟連接器 120 :第二電路板 122 :端子組 130 :軟板 200 :擴充卡 210 :第一電路板 212 :電連接器 〇 214:第一卡槽 216 :固定槽 220 :第二電路板 222 :端子組 224 :第二槽孔 230 :軟板 240 :固定件 240a :第一側板 13 200904304 t2twf.doc/n 240b :第二側板 240c :加強肋 242 :第 一-^鈎 244 :第二固定孔 246 :支撐件 246a :突塊 246b :垂直面 250 :第二扣件 300 :硬碟框架 400 :擴充卡固定結構 14The fixing member 240 may have a first side plate 240a, a second side plate 240b, and a reinforcing rib 240c fixed between the first side plate 240a and the second side plate 240b to reinforce the rigidity of the fixing member 240. In addition, the fixing member 240 can further have a plurality of first hooks 242, wherein the first 242 can be disposed on the first side plate 240a, and can have a first slot 214 on the first circuit board 210. And the first hook 242 is engaged with the first slot 214 to fix the fixing member 240 on the first circuit board 210, and the first "^ hook 242 can be combined with the first slot 214, for example. The horizontal edge is connected to the U touch. In addition, the second circuit board 220 can have a plurality of second slots 224, and the second side panel 240b of the fixture 240 can have a plurality of second fixing holes 244 corresponding to the second slots 224. The expansion card 200 further has a plurality of second fasteners 250 fixed in the second slot 224 and the second fixing hole 244 to fix the fixing member 240 to the second circuit board 22 . In the present embodiment, the first fastener 250 is a latch, which simplifies the assembly of the fastener and the second circuit board 220. In addition, the second fastening member 25 can also be implemented in other manners, for example, a screw, a rivet, a plastic nail or the like can be used as the second fastening member 200904304 w, ------ 2twf.doc/n 250' to make the fixing member 240 It is more firmly fixed on the second circuit board 22A. Further, the fixing member 240 may have a plurality of supporting members 246, and the supporting member 246 may be disposed on the first side plate 240a. The support member 246 can be inserted into the second card slot 214 and brought into contact with the vertical edge of the first card slot 214. The support member 246 can further have a protrusion 246a, and the protrusion 246a has a vertical surface 246b. The protrusion 246b can be engaged with the first hook 242 and fixed to the first slot 214 by different directions, so that the fixing member 240 is fixed to the fixing member 240. When the first slot 214, there is a good positioning effect. It should be noted that, in FIG. 2, FIG. 3 and FIG. 4, the __^ fishing 242, the first card slot 214, the second slot 224, the second fixing hole 244 and the first fastening member 250 are taken as an example for fixing. The method of fixing the member 240 to the first circuit board 21 and the second circuit board 220 can be fixed to the first circuit board 210 and the second circuit board 220 in other manners. For example, in an embodiment of the present invention, the first side panel of the fixing member may have a plurality of second hooks, and the second circuit board may have a brother-card slot and the second card. The hook is engaged with the second card slot to fix the fixing member on the second circuit board. In addition, the first circuit board may have a plurality of first slots, and the first side panel of the fixing member has a plurality of first fixing holes corresponding to the first slot, and the expansion card has a plurality of first slots. The fastener is fixed in the first slot and the first fixing hole to fix the fixing component on the first circuit board, wherein the second hook, the second slot, the first slot, the first fixing hole, and the first For the implementation of a fastener, the first hook 242, the first slot 214, the second slot 224, the second fixing hole 244, and the second fastening component 250 of FIG. 3 and FIG. 4 can be referred to. 11 200904304 v / χ ** λ*-ι^ r2twjf!doc/zi In addition, the first hook, the first card slot, the second hook, the second slot, the first slot, the second slot, The number of the first fixing hole, the second fixing hole, the first fastening member, the second fastening member and the reinforcing rib is not limited to the one in the above embodiment. Those skilled in the art can configure other quantities according to requirements. For example, only one second slot, one second fixing hole, and one second fastener are used. In summary, since the expansion card of the present invention has a fixing member fixed between the circuit board and the second circuit board, the user can smash, and the user can install or disassemble the hairpin. The stress applied by the expansion card may be transmitted from the first circuit board to the second circuit board via the fixing member, or may be transmitted from the second circuit board to the first circuit board. In other words, even if the first circuit board or the second circuit board is individually stressed, there is no relative displacement between the first circuit board and the second circuit board. In this way, the interface between the soft board and the first circuit board or the second circuit board is not subjected to stress, and the breakage of the parent board of the first board or the second board can be avoided, thereby improving the reliability of the expansion card. . Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and it is within the spirit and scope of the present invention to make some changes and The scope of the invention is defined by the scope of the appended claims. [FIG. 1 is a perspective view of a conventional hard disk expansion card. 2 is a perspective view of the expansion card of the present invention. 12200904304 »τ ^ doc/π FIG. 3 is a perspective view of the expansion card of FIG. Figure 4 is a perspective view of the fixing member of Figure 3. [Main component symbol description] 50 : Motherboard 52 : Terminal slot 100 : Hard disk expansion card f ' 110 : First circuit board 112 : Hard disk connector 120 : Second circuit board 122 : Terminal group 130 : Soft board 200 : Expansion card 210 : First circuit board 212 : Electrical connector 〇 214 : First card slot 216 : Fixed slot 220 : Second circuit board 222 : Terminal set 224 : Second slot 230 : Soft board 240 : Fixing piece 240a : first side panel 13 200904304 t2twf.doc / n 240b : second side panel 240c : reinforcing rib 242 : first - hook 244 : second fixing hole 246 : support 246a : projection 246b : vertical surface 250 : second buckle Piece 300: Hard disk frame 400: expansion card fixing structure 14