BZIZU Realtek RTL8127 PCIe 10GbE Network Adapter Review

We purchased the BZIZU Realtek RTL8127 PCIe 10GbE network adapter for $46, and it looks very familiar. This appears to be another brand label on the same basic RTL8127 PCIe Gen4 x1 card we covered in our original RTL8127 review. That matters because the earlier cards often came through AliExpress-style listings, while the BZIZU version is available through Amazon with faster delivery and easier returns. For systems with spare PCIe x1 slots, this is an inexpensive way to add 10Gbase-T without using a larger expansion slot.

Here is an Amazon affiliate link to where we purchased ours.

BZIZU RTL8127 PCIe 10GbE Network Adapter Hardware Overview

The BZIZU RTL8127 is a compact PCIe add-in card with a single RJ45 10Gbase-T port and a full-height bracket pre-installed. This small x1 layout fits into tight spaces where larger NICs would not work.

Here is a view of the I/O, which shows the full-height bracket attached and the single RJ45 10Gbase-T port visible on the I/O side.

If that label does not scream “generic,” I am not sure what does. This is very much just a rebrand of the cards that we tested previously.

Looking down from above reveals the heatsink covering the RTL8127 controller, while the RJ45 port and PCIe x1 edge connector remain visible.

A sticker on the bottom side labels this as an RTL8127 PCIe 4.0 x1 10Gbps Network Adapter. That specification confirms the host interface and maximum link speed.

Included accessories consist of a low-profile bracket for smaller chassis. You can swap brackets depending on whether a chassis requires standard or low-profile expansion cards.

Next, let us plug this in and see how it performs.