![QNAP Battery Backup Unit for the ES NAS Series [BBU-A02-2900MAH]](https://iristechworld.com/wp-content/uploads/2025/08/qnap_brkt_1p_2u_single_slot_pcie_bracket_for_1696491-40x40.jpg "qnap_brkt_1p_2u_single_slot_pcie_bracket_for_1696491.jpg")
![QNAP Battery Backup Unit for the ES NAS Series [BBU-A02-2900MAH]](https://iristechworld.com/wp-content/uploads/2025/08/1652270536_IMG_1752451-40x40.jpg "1652270536_IMG_1752451.jpg")
![QNAP Battery Backup Unit for the ES NAS Series [BBU-A02-2900MAH]](https://iristechworld.com/wp-content/uploads/2025/08/1652270536_IMG_1752452-40x40.jpg "1652270536_IMG_1752452.jpg")
![QNAP Battery Backup Unit for the ES NAS Series [BBU-A02-2900MAH]](https://iristechworld.com/wp-content/uploads/2025/08/1652270536_IMG_1752453-40x40.jpg "1652270536_IMG_1752453.jpg")
![QNAP Battery Backup Unit for the ES NAS Series [BBU-A02-2900MAH]](https://iristechworld.com/wp-content/uploads/2025/08/1652270536_IMG_1752454-40x40.jpg "1652270536_IMG_1752454.jpg")
![QNAP Battery Backup Unit for the ES NAS Series [BBU-A02-2900MAH]](https://iristechworld.com/wp-content/uploads/2025/08/qnap_brkt_1p_2u_single_slot_pcie_bracket_for_1696491-4x4.jpg "qnap_brkt_1p_2u_single_slot_pcie_bracket_for_1696491.jpg"){kind=small}
![QNAP Battery Backup Unit for the ES NAS Series [BBU-A02-2900MAH]](https://iristechworld.com/wp-content/uploads/2025/08/1652270536_IMG_1752451-4x4.jpg "1652270536_IMG_1752451.jpg"){kind=small}
![QNAP Battery Backup Unit for the ES NAS Series [BBU-A02-2900MAH]](https://iristechworld.com/wp-content/uploads/2025/08/1652270536_IMG_1752452-4x4.jpg "1652270536_IMG_1752452.jpg"){kind=small}
![QNAP Battery Backup Unit for the ES NAS Series [BBU-A02-2900MAH]](https://iristechworld.com/wp-content/uploads/2025/08/1652270536_IMG_1752453-4x4.jpg "1652270536_IMG_1752453.jpg"){kind=small}
![QNAP Battery Backup Unit for the ES NAS Series [BBU-A02-2900MAH]](https://iristechworld.com/wp-content/uploads/2025/08/1652270536_IMG_1752454-4x4.jpg "1652270536_IMG_1752454.jpg"){kind=small}
BBU for ES NAS series
QNAP Battery Backup Unit for the ES NAS Series [BBU-A02-2900MAH]
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| Brand | QNAP |
|---|---|
| ACCESSORIES | BATTERY |
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![QNAP Field-Replaceable Controller Unit with Fan for the EJ1600 v2 Expansion Enclosure [CTL-EJ1600-V2-FAN]](https://iristechworld.com/wp-content/uploads/2025/08/qnap_ctl_ej1600_v2_fan_controller_fru_for_ej1600_1353379-300x300.jpg "qnap_ctl_ej1600_v2_fan_controller_fru_for_ej1600_1353379.jpg")
![QNAP Field-Replaceable Controller Unit for the EJ1600 v2 Expansion Enclosure [CTL-EJ1600-V2]](https://iristechworld.com/wp-content/uploads/2025/08/qnap_ctl_ej1600_v2_controller_fru_for_ej1600_1353382-300x300.jpg "qnap_ctl_ej1600_v2_controller_fru_for_ej1600_1353382.jpg")
![QNAP Mellanox MFM1T02A-SR 10GbE Transceiver By Vnix Group [TRX-10GSFP-SR-MLX]](https://iristechworld.com/wp-content/uploads/2025/08/TRX-10GSFP-SR-MLX-300x300.png "TRX-10GSFP-SR-MLX.png")