# Hello, I'm wondering about the part HL7810

**URL:** <https://forum.sierrawireless.com/t/hello-im-wondering-about-the-part-hl7810/35779>\
**Category:** IoT Modules\
**Created:** [February 25, 2026, 9:40pm UTC](https://forum.sierrawireless.com/t/hello-im-wondering-about-the-part-hl7810/35779 "2026-02-25T21:40:59Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![chaitanya](https://avatars.discourse-cdn.com/v4/letter/c/848f3c/32.png) [@chaitanya](https://forum.sierrawireless.com/u/chaitanya)\
**Post date:** [February 25, 2026, 9:40pm UTC](https://forum.sierrawireless.com/t/hello-im-wondering-about-the-part-hl7810/35779/1 "2026-02-25T21:40:59Z")

</div>

Hello, I’m wondering about the part HL7810.

1)There are 4 different variants; are they all the same pinout?

(A)HL7810\_1105043

B)HL7810\_1104876

C)HL7810\_1105309

D)HL7810 R2C-1104876)

2)HL7810\_1105309 vs HL7810\_1105043, what’s the difference between these? Any difference in hardware?

3)What is the meaning of the suffixes?

---

<div class="post-metadata">

**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [February 26, 2026, 1:27am UTC](https://forum.sierrawireless.com/t/hello-im-wondering-about-the-part-hl7810/35779/2 "2026-02-26T01:27:37Z")

</div>

1. yes, they should have same pin out
2. only default firmware is different

---

<div class="post-metadata">

**Author:** ![chaitanya](https://avatars.discourse-cdn.com/v4/letter/c/848f3c/32.png) [@chaitanya](https://forum.sierrawireless.com/u/chaitanya)\
**Post date:** [February 26, 2026, 9:14pm UTC](https://forum.sierrawireless.com/t/hello-im-wondering-about-the-part-hl7810/35779/3 "2026-02-26T21:14:55Z")

</div>

Thank you so much for the support.😇 🙏