# 2.5Gb Compatibility
In this list, help you to find and build 2.5Gbps ONU for your 1Gbps+ Fiber Subscription.

Main goal is to reduce bufferbloat due to flooding 1GbE Port.

Also useful for 2.5Gbps Subscriber who to want to replace stock ONU

## 2.5Gb Stick
| Stick | SoC  | Note |
|-------|------|------|
| [V2801F](https://www.baudcom.com.cn/epon-gpon-onu-stick-sfp-module-with-mac-inside.html) | `RTL9601CI` | [`V2801F_V1.9.0-220425.tar`](../Firmware/V2801F/README.md) firmware |
| [TWCGPON657](https://item.taobao.com/item.htm?spm=a1z09.2.0.0.c0552e8d7UBYLF&id=597031866488) | `RTL9601CI` | |
| [UFiber Instant](https://store.ui.com/collections/operator-ufiber/products/uf-instant) | `RTL9601CI` | ⚠️ missing `2500Base-X` kernel support |
| [DFP-34X-2C2](https://www.aliexpress.com/item/1005003515662920.html) | `RTL9601D` | recommended |

## 2.5Gb Mode
RTL960x has 3 different 2.5Gb Mode:
| Command                    | Medium      | Info                |
|----------------------------|-------------|---------------------|
| `flash set LAN_SDS_MODE 4` | HiSGMII PHY | Layer 1 Transceiver |
| `flash set LAN_SDS_MODE 5` | HiSGMII MAC | Layer 2 Transceiver |
| `flash set LAN_SDS_MODE 6` | 2500Base-X  | Fiber Transceiver   |

## Device List
| Brand    | Type   | Model                     | 2.5Gb SFP+ | Quirks |
|----------|--------|---------------------------|------------|--------|
| Mikrotik | Router | RB4011iGS+RM              | ❌ | NEVER |
| Mikrotik | Router | RB5009UG+S+IN             | ❌  | NEVER |
| MIkrotik | Router | CCR2004-1G-12S+2XS        | ✔ | `98PX1012`, [follow @stich86 tweaks](https://github.com/Anime4000/RTL960x/issues/17#issuecomment-1101435506)|
| Mikrotik | Switch | CRS305-1G-4S+IN           | ✔ | [`98PX1012`](https://forum.mikrotik.com/viewtopic.php?t=185066#p929130), [follow @stich86 tweaks](https://github.com/Anime4000/RTL960x/issues/17#issuecomment-1101435506) |
| Marvell  | Router | MACCHIATObin              | ✔ | `flash set LAN_SDS_MODE 6` |
| TP-Link  | Router | TL-XDR5480                | ✔ | ODI DFP-34X-2C2 as `220304` firmware |
| Dell     | PCIe   | BCM57810S 0Y40PH Y40PH    | ✔ | Patched NVRAM, `4(HiSGMII PHY)` |

# Contribute
If you have tried or experiment Stick on other device that support or not, please tell us so we can update [Device List](#device-list)

You can reply [this thread](https://github.com/Anime4000/RTL960x/issues/17) or open new issue

Thank You!