# Gintai WiFi Antenna Cable for Dell OptiPlex: MHF4 Compatibility & Install Tips > Gintai kit for Dell OptiPlex & Micro: MHF4 fits M.2 Wi-Fi cards only; 2 cables + 1 RP-SMA antenna. Key checks before buying. Tags: wifi-antenna, gintai, dell-optiplex, replacement-antenna, mhf4, rp-sma, m2-wifi Source: https://www.amazon.co.jp/dp/B0BJK5NR5Z Article page: https://web-autoai.com/articles/gintai-wifi-dell-optiplex-3040-3050-3070-5050-7050-7060?lang=en Prices and ratings change over time — check the article page for the current values. --- ## Overview Listed on Amazon Japan as Gintai WiFiアンテナケーブル Dell OptiPlex 3040 3050 3070 5050 7050 7060用, the Gintai WiFi antenna cable kit is a replacement antenna set for Dell OptiPlex desktops and Micro (M-suffix) units. It suits an OptiPlex that already has, or is about to get, an M.2 Wi-Fi card with MHF4 ports but has a missing or damaged antenna. No Wi-Fi card is included, so this kit alone will not give you wireless networking. The kit contains two 1.13 mm coaxial cables (black and white), one foldable RP-SMA male antenna, two M3×3 screws, one M2×3 screw, and one clear PVC insulating sheet. Used OptiPlex Micro units are often sold with their antennas removed. Adding a card and then finding it cannot pick up a signal is the typical situation this product is for. On Amazon. co. ## Compatibility Guide ### Supported models The listing gives the following supported models. | Group | Models | |---|---| | Standard | 3020 / 3040 / 3050 / 3060 / 3070 / 5050 / 5060 / 5070 / 7050 / 7060 / 7070 | | M-series (Micro) | 3020M / 3040M / 3050M / 3060M / 3070M / 5050M / 5060M / 5070M / 7040M / 7050M / 7060M / 7070M / 9020M | | Regulatory model | D09U001 | The list mixes standard and Micro model numbers. OptiPlex models come in tower (MT), small form factor (SFF), and Micro chassis, and antenna routing and screw positions differ between them. Check your system label to confirm which chassis you have, then compare it with the bracket shape in the product photos before ordering. D09U001 is a regulatory model printed on Micro-type units, so it helps when the model name is hard to read. ### Check the connectors first (the most common mistake) The board end of each cable is an MHF4 female connector. MHF4 is the tiny connector used on M.2 (NGFF) 2230 Wi-Fi cards such as the Intel 8260NGW and Intel AX210. Older mini PCIe cards use the larger U. FL (MHF1) connector, which this cable physically cannot fit. Before buying, confirm that your system has an M.2 Wi-Fi slot and check which connector your card uses. On the outside, the white cable ends in an RP-SMA female jack and the included antenna is RP-SMA male. RP-SMA is common on Wi-Fi gear, but it looks almost identical to SMA with the center pin reversed, so the two will not mate. If you later swap in a higher-gain antenna, it must be RP-SMA male. ### What the two cables do The black cable ends in a metal bracket that screws to the inside of the chassis. The clear PVC sheet appears to be there to keep the bracket and connectors from touching other parts. The white cable brings an RP-SMA female jack out to the rear, and the included antenna screws onto it. A 2×2 Wi-Fi card has MAIN and AUX ports, and you should connect both. One antenna will still work, but speed and stability tend to suffer. Check the product photos or instructions to see which cable goes to which port. If unsure, putting the external antenna on MAIN is a safe default. ### Frequency bands The listing does not state supported frequencies. Kits like this are normally used for 2.4 GHz and 5 GHz Wi-Fi 5 or Wi-Fi 6, but performance on the Wi-Fi 6E 6 GHz band is unknown. If you pair it with a 6E card such as the AX210, keep expectations modest for 6 GHz. ## Product Info | Item | Details | |---|---| | Cable diameter | 1.13 mm | | Cables | 2 (black: MHF4 female to metal bracket / white: MHF4 female to RP-SMA female) | | Antenna | 1x RP-SMA male, foldable | | Accessories | 2x M3×3 screws, 1x M2×3 screw, 1x clear PVC insulating sheet | | Wi-Fi card | Not included | As of October 3, 2026, Amazon. co. That may seem high for cables and an antenna, but part of the price is the model-specific bracket and screws. Buying a generic MHF4 to RP-SMA pigtail and antenna separately can cost less. If you are comfortable improvising the mounting, compare both options. Prices change, so check the product page for the current price before buying. 1.13 mm is a common thin coax size for M.2 cards. Thinner cable loses more signal over long runs, but the difference is negligible for short runs inside a PC. Cable length is not stated in the listing, so use the dimensions in the product photos to confirm it reaches from the card to the rear panel. This is a third-party replacement part, not a genuine Dell component, and it is reported to have launched around 2022. It is not guaranteed to match OEM durability or finish. If you plan to use it long term, check connector retention and connection stability soon after it arrives. ## Installation Steps 1. Shut down, unplug the power cable, and open the case 2. Locate the Wi-Fi card and its MAIN and AUX ports 3. Press each MHF4 connector straight down onto the card (angled force can crack it) 4. Screw the black cable's bracket to its mounting point, adding the insulating sheet if needed 5. Pass the white cable's RP-SMA jack through the rear opening, secure it, and screw on the antenna from outside 6. Route the cables away from fans and the CPU cooler, then close the case MHF4 connectors are very small and can lose grip after repeated removal. When removing one, do not pull the cable. Lift the connector straight up at its base with a proper tool or fine tweezers. The job is not difficult, but if you have never opened a PC, look up your model's disassembly steps first. ## Recommended Users * **Refurbishers of used OptiPlex Micro units**: When adding an M.2 card to a unit that arrived without antennas, this kit provides everything including a chassis-matched bracket. The wide model range also makes it a handy spare for people servicing several machines. * **People switching to an M.2 Wi-Fi card**: If the original antenna leads are missing or do not fit after moving to a newer card such as the Intel AX210, this kit fills the gap. The card must be bought separately. * **Owners with a broken antenna lead**: If a snapped cable or damaged connector has made Wi-Fi unstable, you can replace it without hunting down genuine Dell parts. It is not a good fit for laptops, other desktop brands, buyers who want a card and antenna together, or anyone who needs exact OEM quality. ## Before You Buy **No Wi-Fi card is included. ** The product name makes it easy to assume that installing it will give you Wi-Fi. An OptiPlex without a card also needs an M.2 Wi-Fi card. **It does not work with mini PCIe cards. ** The MHF4 connectors physically cannot fit the U. FL (MHF1) ports on older cards. The list includes older models such as the 9020M and 3020, so confirm your slot type and card connector first. **Chassis type can affect fit. ** The list mixes standard and Micro models, but tower, SFF, and Micro units have different internals. Whether the rear panel has an opening for the RP-SMA jack also varies by chassis, so compare the product photos with the back of your PC. **Some listing specs are unclear. ** The listing shows a Channel count of 6, but it is not clear what that means for an antenna kit. Do not base your decision on it. Supported frequencies are not listed either, so assume 6 GHz performance is not guaranteed. Look for reports from owners of your exact model. ## FAQ **Q. Does it come with a Wi-Fi card? ** A. No. It includes only the two cables, one antenna, screws, and an insulating sheet. You need to supply the card. **Q. Will it work with a mini PCIe Wi-Fi card? ** A. No. The board-side connectors are MHF4 for M.2 cards and will not fit the U. FL ports on mini PCIe cards. **Q. Can I swap in a higher-gain antenna? ** A. Yes, as long as it is RP-SMA male, because the white cable ends in an RP-SMA female jack. SMA antennas will not fit. **Q. Does it fit tower OptiPlex models? ** A. Standard models are on the list, but bracket fit may differ by chassis type. Compare the product photos with your chassis before choosing. **Q. Can I use it on Wi-Fi 6E 6 GHz? ** A. That cannot be confirmed because no frequency range is listed. Plan on 2.4 GHz and 5 GHz use and keep expectations modest for 6 GHz. ### Product Disclosure (Amazon) - Manufacturer: Gintai - Brand: GinTai - Seller: Amazon US - Fulfilled by: Amazon US - ASIN: B0BJK5NR5Z - Note: This article covers a manufacturer-made product based on Amazon listing details.